Drs. Manning and Rhodes suspect that two separate cases involving sick babies may be connected; a homeless patient's upbeat disposition enlightens Drs. Halstead and Charles; Dr. Choi and a Navy corpsman deal with the toll of gang violence.

Drs. Manning and Rhodes suspect that two separate cases involving sick babies may be connected; a homeless patient's upbeat disposition enlightens Drs. Halstead and Charles; Dr. Choi and a Navy corpsman deal with the toll of gang violence.

An Indonesian man who doesn't speak English arrives at the hospital with a mysterious illness; Dr. Halstead attends Maggie's family reunion; Dr. Rhodes accepts a complicated heart surgery without consulting Dr. Latham.

An Indonesian man who doesn't speak English arrives at the hospital with a mysterious illness; Dr. Halstead attends Maggie's family reunion; Dr. Rhodes accepts a complicated heart surgery without consulting Dr. Latham.

When several patients turn out to have the same rare infection, Dr. Charles' epidemiologist daughter comes in to consult; an elderly patient's son and young girlfriend disagree over his treatment; Dr. Reese tries to help a young drug addict.

A car crash at the Chicago Marathon leaves victims in critical condition; April and her medical resident brother must perform an intense operation in the field; an 8-year-old girl experiences sudden hearing loss; Dr. Choi treats a malnourished woman.

A young cancer patient struggles to tell her parents about her condition; Dr. Reese turns to Dr. Charles and Detective Lindsay for help with a troubled young man; a teen science geek and her friends impress Dr. Choi and Natalie.

Dr. Rhodes begins his cardiothoracic surgery fellowship but gets off on the wrong foot with his new boss; Dr. Choi begins his life as chief resident; Sarah is caught off-guard by Dr. Charles; April tries to deal with her recently discovered illness.

Dr. Rhodes begins his cardiothoracic surgery fellowship but gets off on the wrong foot with his new boss; Dr. Choi begins his life as chief resident; Sarah is caught off-guard by Dr. Charles; April tries to deal with her recently discovered illness.

Following the investigation into the deaths of billionaire and generic drug mogul Barry Sherman and his philanthropist wife Honey by Toronto Star reporter Kevin Donovan.

Following the investigation into the deaths of billionaire and generic drug mogul Barry Sherman and his philanthropist wife Honey by Toronto Star reporter Kevin Donovan.

Two women in neighboring apartments become fast friends before becoming sworn enemies; the women enlists their sisters as reinforcements in a war that escalates and ends in violence.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

A member of the team is caught in the wrong place at the wrong time when a young man holds a courtroom hostage in an attempt to clear his name for a murder he didn't commit.

Two women in neighboring apartments become fast friends before becoming sworn enemies; the women enlists their sisters as reinforcements in a war that escalates and ends in violence.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

A member of the team is caught in the wrong place at the wrong time when a young man holds a courtroom hostage in an attempt to clear his name for a murder he didn't commit.

Two women in neighboring apartments become fast friends before becoming sworn enemies; the women enlists their sisters as reinforcements in a war that escalates and ends in violence.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

A member of the team is caught in the wrong place at the wrong time when a young man holds a courtroom hostage in an attempt to clear his name for a murder he didn't commit.

Burgess finds heroin in a duffel bag belonging to a mild-mannered and respected college professor; Roman talks to Platt about his career; Halstead takes an off-duty security job working for the attractive owner of a medical marijuana clinic.

Lindsay, Halstead and Mouse search for a connection when two shootings take place in gang territory; a candlelight vigil is held for a young boy who was murdered in the first shooting.

During a bank run for his off-duty security job, Halstead and his co-workers are attacked by a violent robbery crew, which leads to a shootout; Voight and Lindsay talk to a dispensary owner who says her business has received threats from local gangs.

The team discovers a secret battered woman's shelter and learns the owner has been wounded and a resident has been abducted; Burgess and Roman track down a man who has been catfishing people on a dating app to rob them.

When Burgess and Lindsay respond to a call about a stabbing, the assailant turns out to be a kidnapping victim escaping her captor; Ruzek accuses Roman of having feelings for Burgess.

After a bachelorette party with Lysa's childhood best friend, the team wakes up in rough shape and hungover, with no idea how they ended up where they are.

Burgess finds heroin in a duffel bag belonging to a mild-mannered and respected college professor; Roman talks to Platt about his career; Halstead takes an off-duty security job working for the attractive owner of a medical marijuana clinic.

Nine people survive a plane crash into the Mexican jungle, but they don't know that a murderer lurks in their midst; nine days later, their bodies are recovered by the Mexican army; one of the passengers is missing.

When a man opens fire on a patrol car and wounds Roman, Burgess pursues the shooter; with no gun found at the scene, Burgess faces the accusation of shooting an unarmed man; the man who sent Voight to prison is assigned to help defend Burgess.

Lindsay, Halstead and Mouse search for a connection when two shootings take place in gang territory; a candlelight vigil is held for a young boy who was murdered in the first shooting.

During a bank run for his off-duty security job, Halstead and his co-workers are attacked by a violent robbery crew, which leads to a shootout; Voight and Lindsay talk to a dispensary owner who says her business has received threats from local gangs.

The team discovers a secret battered woman's shelter and learns the owner has been wounded and a resident has been abducted; Burgess and Roman track down a man who has been catfishing people on a dating app to rob them.

After a bachelorette party with Lysa's childhood best friend, the team wakes up in rough shape and hungover, with no idea how they ended up where they are.

After a cold and unmoving newborn baby is discovered in a duffel bag on a Chicago lakefront, Chicago Med is able to provide information that helps zero in on a suspect; Roman and Burgess grow closer.

Nine people survive a plane crash into the Mexican jungle, but they don't know that a murderer lurks in their midst; nine days later, their bodies are recovered by the Mexican army; one of the passengers is missing.

In 1988, motorists discover human body parts dumped along the highway.

In 1990, Gainesville, Fla., becomes the site of a number of coed murders.

The disappearance of millionaire Frank Black.

Lindsay and Halstead discover the youngest daughter is the only survivor of a shooting at a family home; Antonio and Olinsky investigate a pyramid scheme self-help group; Platt tries to convince Crowley that Burgess and Roman should remain partners.

When the body of a single mother is found in the trunk of her car, the team is shocked to learn the victim had contact with Voight's reformed son.

The victim of a murder-arson case is discovered to have been wearing a CPD issued wire at the time of his death; Burgess meets her new partner; Cmdr. Crowley questions Lindsay about the night intelligence pursued Justin's killer.

Voight and the team search for answers after discovering a man badly beaten and learning that his fiancee is missing; Lindsay asks Halsted a surprising question; Platt is berated by Fogel for going over his head.

After Platt is physically assaulted while getting into her car, she's rushed to Chicago Med, where Mouch finds himself being questioned; Antonio and the team look for previous threats against Platt.

Lindsay and Ruzek respond when a car crashes through a crowd of concert goers and a gunman opens fire; Burgess sees Atwater's brother somewhere he shouldn't be.

The body of a college student is found with a backpack full of a drug linked to deadly overdoses around the city; Tay finds a bloodied child with a dark story about his parents; Mouse looks to re-enlist in the army.

Lindsay and Halstead discover the youngest daughter is the only survivor of a shooting at a family home; Antonio and Olinsky investigate a pyramid scheme self-help group; Platt tries to convince Crowley that Burgess and Roman should remain partners.

When the body of a single mother is found in the trunk of her car, the team is shocked to learn the victim had contact with Voight's reformed son.

The victim of a murder-arson case is discovered to have been wearing a CPD issued wire at the time of his death; Burgess meets her new partner; Cmdr. Crowley questions Lindsay about the night intelligence pursued Justin's killer.

Voight and the team search for answers after discovering a man badly beaten and learning that his fiancee is missing; Lindsay asks Halsted a surprising question; Platt is berated by Fogel for going over his head.

After Platt is physically assaulted while getting into her car, she's rushed to Chicago Med, where Mouch finds himself being questioned; Antonio and the team look for previous threats against Platt.

Lindsay and Ruzek respond when a car crashes through a crowd of concert goers and a gunman opens fire; Burgess sees Atwater's brother somewhere he shouldn't be.

The body of a college student is found with a backpack full of a drug linked to deadly overdoses around the city; Tay finds a bloodied child with a dark story about his parents; Mouse looks to re-enlist in the army.

Lindsay and Halstead discover the youngest daughter is the only survivor of a shooting at a family home; Antonio and Olinsky investigate a pyramid scheme self-help group; Platt tries to convince Crowley that Burgess and Roman should remain partners.

When the body of a single mother is found in the trunk of her car, the team is shocked to learn the victim had contact with Voight's reformed son.

The victim of a murder-arson case is discovered to have been wearing a CPD issued wire at the time of his death; Burgess meets her new partner; Cmdr. Crowley questions Lindsay about the night intelligence pursued Justin's killer.

Voight and the team search for answers after discovering a man badly beaten and learning that his fiancee is missing; Lindsay asks Halsted a surprising question; Platt is berated by Fogel for going over his head.

After Platt is physically assaulted while getting into her car, she's rushed to Chicago Med, where Mouch finds himself being questioned; Antonio and the team look for previous threats against Platt.

Lindsay and Ruzek respond when a car crashes through a crowd of concert goers and a gunman opens fire; Burgess sees Atwater's brother somewhere he shouldn't be.

The body of a college student is found with a backpack full of a drug linked to deadly overdoses around the city; Tay finds a bloodied child with a dark story about his parents; Mouse looks to re-enlist in the army.

Members of Firehouse 51 transport victims of a gas leak to nearby Chicago Med; an armed patient claiming to be carrying a deadly airborne disease forces Chicago Med into lockdown.

Mills works to save the life of a driver injured in a car wreck; Casey harbors doubts about Jack Nesbitt; Hermann, Otis, Cruz and Chaplain Orlovsky ready their team for the peewee hockey championship.

An apartment fire with connections to a rape and attempted murder leads to a joint investigation with the CPD and Sgt. Benson of the NYPD's Special Victims Unit; Dawson risks her life during a call.

Sgt. Voight encourages Lt. Casey to go under cover in order to obtain proof of Jack Nesbitt's shady dealings; tensions grow between Otis and Severide; Herrmann helps another member of the firehouse.

Lt. Casey ends up in danger as he continues to investigate Jack Nesbitt; Boden tries to create unity in the house; Cruz and Boden put their lives on the line to save their own when a warehouse blaze gets out of control; Dawson receives news.

During an undercover operation, Lt. Casey lands in very dangerous territory; Dawson's suspicions are confirmed; a new candidate (Steven R. McQueen) makes an unusual first impression; a protest hinders firefighters who are trying to battle a blaze.

Chief Boden's job is on the line in the wake of a complicated call to a fire; Severide struggles to adjust to his smaller role and the presence of his new commanding officer; Casey works on finding evidence in his investigation against Nesbitt.

When new evidence appears in the internal affairs investigation that will clear Chief Boden, a twist puts him right back in the thick of it; Brett and Chili try to save a stabbing victim from bleeding to death.

Members of the firehouse band together to help one of their own; Herrmann looks for a way to reopen Molly's; Severide struggles to deal with one of his toughest days as he looks into the arson investigation.

Members of Firehouse 51 transport victims of a gas leak to nearby Chicago Med; an armed patient claiming to be carrying a deadly airborne disease forces Chicago Med into lockdown.

Mills works to save the life of a driver injured in a car wreck; Casey harbors doubts about Jack Nesbitt; Hermann, Otis, Cruz and Chaplain Orlovsky ready their team for the peewee hockey championship.

An apartment fire with connections to a rape and attempted murder leads to a joint investigation with the CPD and Sgt. Benson of the NYPD's Special Victims Unit; Dawson risks her life during a call.

Sgt. Voight encourages Lt. Casey to go under cover in order to obtain proof of Jack Nesbitt's shady dealings; tensions grow between Otis and Severide; Herrmann helps another member of the firehouse.

Lt. Casey ends up in danger as he continues to investigate Jack Nesbitt; Boden tries to create unity in the house; Cruz and Boden put their lives on the line to save their own when a warehouse blaze gets out of control; Dawson receives news.

During an undercover operation, Lt. Casey lands in very dangerous territory; Dawson's suspicions are confirmed; a new candidate (Steven R. McQueen) makes an unusual first impression; a protest hinders firefighters who are trying to battle a blaze.

Chief Boden's job is on the line in the wake of a complicated call to a fire; Severide struggles to adjust to his smaller role and the presence of his new commanding officer; Casey works on finding evidence in his investigation against Nesbitt.

When new evidence appears in the internal affairs investigation that will clear Chief Boden, a twist puts him right back in the thick of it; Brett and Chili try to save a stabbing victim from bleeding to death.

Members of the firehouse band together to help one of their own; Herrmann looks for a way to reopen Molly's; Severide struggles to deal with one of his toughest days as he looks into the arson investigation.

Members of Firehouse 51 transport victims of a gas leak to nearby Chicago Med; an armed patient claiming to be carrying a deadly airborne disease forces Chicago Med into lockdown.

Mills works to save the life of a driver injured in a car wreck; Casey harbors doubts about Jack Nesbitt; Hermann, Otis, Cruz and Chaplain Orlovsky ready their team for the peewee hockey championship.

An apartment fire with connections to a rape and attempted murder leads to a joint investigation with the CPD and Sgt. Benson of the NYPD's Special Victims Unit; Dawson risks her life during a call.

Sgt. Voight encourages Lt. Casey to go under cover in order to obtain proof of Jack Nesbitt's shady dealings; tensions grow between Otis and Severide; Herrmann helps another member of the firehouse.

Lt. Casey ends up in danger as he continues to investigate Jack Nesbitt; Boden tries to create unity in the house; Cruz and Boden put their lives on the line to save their own when a warehouse blaze gets out of control; Dawson receives news.

During an undercover operation, Lt. Casey lands in very dangerous territory; Dawson's suspicions are confirmed; a new candidate (Steven R. McQueen) makes an unusual first impression; a protest hinders firefighters who are trying to battle a blaze.

A single woman and her daughter are delighted when a single man and his two daughters move in next door; they become fast friends until molestation charges result in anger, accusations and multiple bloody deaths.

A phantom white supremacist sect takes credits for bombings and bank robberies in Spokane, Wash., but FBI forensic photo analysts clears the picture.

Jules puts her negotiating skills to the test when the unit responds to a kidnapping, only to find that there are actually two victims.

A single woman and her daughter are delighted when a single man and his two daughters move in next door; they become fast friends until molestation charges result in anger, accusations and multiple bloody deaths.

A phantom white supremacist sect takes credits for bombings and bank robberies in Spokane, Wash., but FBI forensic photo analysts clears the picture.

Jules puts her negotiating skills to the test when the unit responds to a kidnapping, only to find that there are actually two victims.

A single woman and her daughter are delighted when a single man and his two daughters move in next door; they become fast friends until molestation charges result in anger, accusations and multiple bloody deaths.

A phantom white supremacist sect takes credits for bombings and bank robberies in Spokane, Wash., but FBI forensic photo analysts clears the picture.

Jules puts her negotiating skills to the test when the unit responds to a kidnapping, only to find that there are actually two victims.

Boden steps up to host a neighborhood wedding that was ruined by a fire; Chief Riddle's political aspirations cause friction at the firehouse; Severide fights his way back to his old position.

Chief Boden's new neighbor asks him for a favor; tension escalates between Severide and Captain Patterson; Cruz receives a surprise visitor; Mouch and Herrmann are excited to receive concert tickets to see Rush.

Boden thinks he's being set up by his neighbor; Severide's father pays him an unexpected visit; romance is in the air at the Chicago Fire Department gala.

Patterson questions Boden's ability to lead the firehouse as the trial approaches; Brett and Chili find an unconscious man in a garden; Otis tries to fill his social calendar.

Members of Firehouse 51 are unhappy when Patterson fills in for Boden while he tries to clear his name; Severide may have found Serena; Chili and Jimmy attract more attention than they expected.

A member of Firehouse 51 is treated for life-threatening injuries; Cruz searches for Freddie; Mouch has a surprise for Trudy; Chili's behavior worries Brett and Jimmy.

Imogen smuggles Adilah to England to see Michael, in the hope that answers will finally be given; Max and Malik must work together and follow as her only back up.

Boden steps up to host a neighborhood wedding that was ruined by a fire; Chief Riddle's political aspirations cause friction at the firehouse; Severide fights his way back to his old position.

Boden steps up to host a neighborhood wedding that was ruined by a fire; Chief Riddle's political aspirations cause friction at the firehouse; Severide fights his way back to his old position.

Chief Boden's new neighbor asks him for a favor; tension escalates between Severide and Captain Patterson; Cruz receives a surprise visitor; Mouch and Herrmann are excited to receive concert tickets to see Rush.

Chief Boden's new neighbor asks him for a favor; tension escalates between Severide and Captain Patterson; Cruz receives a surprise visitor; Mouch and Herrmann are excited to receive concert tickets to see Rush.

Boden thinks he's being set up by his neighbor; Severide's father pays him an unexpected visit; romance is in the air at the Chicago Fire Department gala.

Boden thinks he's being set up by his neighbor; Severide's father pays him an unexpected visit; romance is in the air at the Chicago Fire Department gala.

Patterson questions Boden's ability to lead the firehouse as the trial approaches; Brett and Chili find an unconscious man in a garden; Otis tries to fill his social calendar.

Patterson questions Boden's ability to lead the firehouse as the trial approaches; Brett and Chili find an unconscious man in a garden; Otis tries to fill his social calendar.

Members of Firehouse 51 are unhappy when Patterson fills in for Boden while he tries to clear his name; Severide may have found Serena; Chili and Jimmy attract more attention than they expected.

Members of Firehouse 51 are unhappy when Patterson fills in for Boden while he tries to clear his name; Severide may have found Serena; Chili and Jimmy attract more attention than they expected.

A member of Firehouse 51 is treated for life-threatening injuries; Cruz searches for Freddie; Mouch has a surprise for Trudy; Chili's behavior worries Brett and Jimmy.

A member of Firehouse 51 is treated for life-threatening injuries; Cruz searches for Freddie; Mouch has a surprise for Trudy; Chili's behavior worries Brett and Jimmy.

Imogen smuggles Adilah to England to see Michael, in the hope that answers will finally be given; Max and Malik must work together and follow as her only back up.

Imogen smuggles Adilah to England to see Michael, in the hope that answers will finally be given; Max and Malik must work together and follow as her only back up.

Boden steps up to host a neighborhood wedding that was ruined by a fire; Chief Riddle's political aspirations cause friction at the firehouse; Severide fights his way back to his old position.

Realizing a long-held dream, a Michigan couple relocates to Florida, then their life in the sun is destroyed after they get into a fatal conflict with their neighbor.

When the prime subject for four factory deaths has a perfect alibi, investigators use video analysis, timeline reconstruction and a 3-year old fingerprint to solve the crime.

A routine protection job goes awry when an explosion in a hotel kitchen masks the kidnapping of the wife of the man the team is guarding.

Realizing a long-held dream, a Michigan couple relocates to Florida, then their life in the sun is destroyed after they get into a fatal conflict with their neighbor.

When the prime subject for four factory deaths has a perfect alibi, investigators use video analysis, timeline reconstruction and a 3-year old fingerprint to solve the crime.

A routine protection job goes awry when an explosion in a hotel kitchen masks the kidnapping of the wife of the man the team is guarding.

Realizing a long-held dream, a Michigan couple relocates to Florida, then their life in the sun is destroyed after they get into a fatal conflict with their neighbor.

When the prime subject for four factory deaths has a perfect alibi, investigators use video analysis, timeline reconstruction and a 3-year old fingerprint to solve the crime.

A routine protection job goes awry when an explosion in a hotel kitchen masks the kidnapping of the wife of the man the team is guarding.

Halstead and Manning deal with two feuding brothers, one of which is in dire need of a kidney; a patient of Dr. Reese's comes to a crossroad; a 16-year-old with a genetic condition needs surgery, but the overprotective mother gets in the way.

Dr. Charles is tasked with evaluating a patient as a possible heart recipient; Jeff makes a confession to Dr. Manning; two MMA fighters arrive at Chicago Med in bad shape; Dr. Stohl returns from his sabbatical.

A heart transplant patient gets into a car accident, revealing issues that could complicate her surgery; the police officer who arrested Maggie is brought to Chicago Med with a serious injury.

On a busy night, Dr. Reese deals with having to pronounce several patients dead; April is pressured to slow down; Dr. Charles has important news for Dr. Latham; Goodwin asks Dr. Rhodes to help an unusual patient.

A girl's rapidly changing symptoms have everyone perplexed; a 19-year-old tough guy is in severe distress; Dr. Halstead deals with a difficult case, and Dr. Stohl is followed by a camera crew that is shooting a promotional video.

Dr. Rhodes persuades Dr. Latham to accompany him on a medical trip out of town; an 8-year-old cancer patient wants to give up his battle; a woman with a personality disorder complicates a case.

A traumatic multi-car accident during a blizzard stretches the hospital staff to the limit; Rhodes and Latham make difficult decisions in triage; Choi handles a severely burned patient who has a final request.

Halstead and Manning deal with two feuding brothers, one of which is in dire need of a kidney; a patient of Dr. Reese's comes to a crossroad; a 16-year-old with a genetic condition needs surgery, but the overprotective mother gets in the way.

Dr. Charles is tasked with evaluating a patient as a possible heart recipient; Jeff makes a confession to Dr. Manning; two MMA fighters arrive at Chicago Med in bad shape; Dr. Stohl returns from his sabbatical.

A heart transplant patient gets into a car accident, revealing issues that could complicate her surgery; the police officer who arrested Maggie is brought to Chicago Med with a serious injury.

On a busy night, Dr. Reese deals with having to pronounce several patients dead; April is pressured to slow down; Dr. Charles has important news for Dr. Latham; Goodwin asks Dr. Rhodes to help an unusual patient.

A girl's rapidly changing symptoms have everyone perplexed; a 19-year-old tough guy is in severe distress; Dr. Halstead deals with a difficult case, and Dr. Stohl is followed by a camera crew that is shooting a promotional video.

Dr. Rhodes persuades Dr. Latham to accompany him on a medical trip out of town; an 8-year-old cancer patient wants to give up his battle; a woman with a personality disorder complicates a case.

A traumatic multi-car accident during a blizzard stretches the hospital staff to the limit; Rhodes and Latham make difficult decisions in triage; Choi handles a severely burned patient who has a final request.

Halstead and Manning deal with two feuding brothers, one of which is in dire need of a kidney; a patient of Dr. Reese's comes to a crossroad; a 16-year-old with a genetic condition needs surgery, but the overprotective mother gets in the way.

A man who is meticulous about his lawn bickers with a new neighbor who doesn't have the same priorities; the feud between the two men escalates, ultimately ending in an episode of shocking violence.

Sixteen years after a college student is found raped and strangled on a buffalo bike path, DNA technology and other clues help catch the killer.

A woman kidnaps another woman and holds her hostage; when the situation escalates quickly, team members question how things was handled.

A man who is meticulous about his lawn bickers with a new neighbor who doesn't have the same priorities; the feud between the two men escalates, ultimately ending in an episode of shocking violence.

Sixteen years after a college student is found raped and strangled on a buffalo bike path, DNA technology and other clues help catch the killer.

A woman kidnaps another woman and holds her hostage; when the situation escalates quickly, team members question how things was handled.

A man who is meticulous about his lawn bickers with a new neighbor who doesn't have the same priorities; the feud between the two men escalates, ultimately ending in an episode of shocking violence.

Sixteen years after a college student is found raped and strangled on a buffalo bike path, DNA technology and other clues help catch the killer.

A woman kidnaps another woman and holds her hostage; when the situation escalates quickly, team members question how things was handled.

The Santa Ana winds bring in a variety of weirder-than-usual emergencies; a family dog retrieves a severed hand; a young woman sleep-drives into the station; Denny questions Hen and Karen about his biological parents.

A dry thunderstorm rolls over Los Angeles, bringing in a series of lightning strike emergencies for the 118 and leaves a first responder's life hanging in the balance; Chimney get a surprise from a visiting Albert.

As Buck's life hangs in the balance, he dreams of a world where he never became a firefighter, for better and worse.

Despite the case being closed, Bobby is determined to prove his Alcoholics Anonymous sponsor was murdered and bring his killer to justice; Buck struggles with his post-traumatic stress.

The 118 faces emergencies at a spin class and a hair salon; a husband and wife find themselves in a compromising position; Buck discovers new cognitive abilities; Hen and Karen find out Denny has been seeing his biological father.

The 118 race to emergencies at a commercial bakery and a bodybuilding competition; Bobby's annual performance reviews send Chimney to the firefighter academy, where he runs into a familiar face; Eddie's aunt gets involved in his personal life.

A fire breaks out in an accountant's office and a car crashes into a "living funeral"; Athena is shocked when a suspect dies in her custody minutes after she arrests him; Buck is attracted to a death doula; Maddie and Chimney are audited by the IRS.

The Santa Ana winds bring in a variety of weirder-than-usual emergencies; a family dog retrieves a severed hand; a young woman sleep-drives into the station; Denny questions Hen and Karen about his biological parents.

A dry thunderstorm rolls over Los Angeles, bringing in a series of lightning strike emergencies for the 118 and leaves a first responder's life hanging in the balance; Chimney get a surprise from a visiting Albert.

As Buck's life hangs in the balance, he dreams of a world where he never became a firefighter, for better and worse.

Despite the case being closed, Bobby is determined to prove his Alcoholics Anonymous sponsor was murdered and bring his killer to justice; Buck struggles with his post-traumatic stress.

The 118 faces emergencies at a spin class and a hair salon; a husband and wife find themselves in a compromising position; Buck discovers new cognitive abilities; Hen and Karen find out Denny has been seeing his biological father.

The 118 race to emergencies at a commercial bakery and a bodybuilding competition; Bobby's annual performance reviews send Chimney to the firefighter academy, where he runs into a familiar face; Eddie's aunt gets involved in his personal life.

A fire breaks out in an accountant's office and a car crashes into a "living funeral"; Athena is shocked when a suspect dies in her custody minutes after she arrests him; Buck is attracted to a death doula; Maddie and Chimney are audited by the IRS.

The Santa Ana winds bring in a variety of weirder-than-usual emergencies; a family dog retrieves a severed hand; a young woman sleep-drives into the station; Denny questions Hen and Karen about his biological parents.

Two families with several children between them get along famously until one of the mothers starts to dictate to the other how she should be raising her children; battle lines are drawn, violence flares and blood runs in the street.

A Texas playboy is murdered and police uncover x-rated photos, shocking videos and an object hidden inside the victim's body.

Ed is called to the scene when an SRU veteran locks himself in a safe room with the intent to commit suicide.

Two families with several children between them get along famously until one of the mothers starts to dictate to the other how she should be raising her children; battle lines are drawn, violence flares and blood runs in the street.

A Texas playboy is murdered and police uncover x-rated photos, shocking videos and an object hidden inside the victim's body.

Ed is called to the scene when an SRU veteran locks himself in a safe room with the intent to commit suicide.

Two families with several children between them get along famously until one of the mothers starts to dictate to the other how she should be raising her children; battle lines are drawn, violence flares and blood runs in the street.

A Texas playboy is murdered and police uncover x-rated photos, shocking videos and an object hidden inside the victim's body.

Ed is called to the scene when an SRU veteran locks himself in a safe room with the intent to commit suicide.

Dr. Rhodes cares for a trauma patient whose accident is a media sensation; a grieving widower relies on a superhero costume; April pushes Halstead to use unproven medications to help a patient with no other options.

Dr. Reese is contacted for help by a troubled teen in a psychiatric facility; Dr. Manning tries to help parents make a decision about their comatose daughter's surprise pregnancy; April begins to deal with repercussions from her personal life.

Doctors and nurses deal with a staff member's suicide; Choi and Halstead face off over how to treat a patient who is experiencing stroke symptoms; Manning treats a boy who fell into the river; Rhodes examines the man who saved Dr. Manning's patient.

Will confronts a moral decision when his former teacher faces a life-threatening disease; Rhodes disagrees with the father of a young patient about a risky procedure; an unusual case causes Sarah to recall Jason Wheeler's suicide.

Doctors must diagnose patients without the aid of technology after a hacker shuts down the hospital computer system; Goodwin gets a visit from her ex husband Bert and his new girlfriend; Choi and Noah have to remove a bullet from a gunshot victim.

Dr. Halstead's father is admitted to the hospital against his wishes; Dr. Charles gets involved when his daughter's strange behavior continues to intensify; Dr. Manning feels the impact of being a working mother.

Dr. Rhodes cares for a trauma patient whose accident is a media sensation; a grieving widower relies on a superhero costume; April pushes Halstead to use unproven medications to help a patient with no other options.

Kevin Donovan reveals details of Barry and Honey Shermans' last day alive, what may have happened inside their home on Dec. 13, 2017, and reconstructs the days leading up to the discovery of their bodies.

Dr. Reese is contacted for help by a troubled teen in a psychiatric facility; Dr. Manning tries to help parents make a decision about their comatose daughter's surprise pregnancy; April begins to deal with repercussions from her personal life.

Doctors and nurses deal with a staff member's suicide; Choi and Halstead face off over how to treat a patient who is experiencing stroke symptoms; Manning treats a boy who fell into the river; Rhodes examines the man who saved Dr. Manning's patient.

Will confronts a moral decision when his former teacher faces a life-threatening disease; Rhodes disagrees with the father of a young patient about a risky procedure; an unusual case causes Sarah to recall Jason Wheeler's suicide.

Doctors must diagnose patients without the aid of technology after a hacker shuts down the hospital computer system; Goodwin gets a visit from her ex husband Bert and his new girlfriend; Choi and Noah have to remove a bullet from a gunshot victim.

Dr. Halstead's father is admitted to the hospital against his wishes; Dr. Charles gets involved when his daughter's strange behavior continues to intensify; Dr. Manning feels the impact of being a working mother.

Dr. Rhodes cares for a trauma patient whose accident is a media sensation; a grieving widower relies on a superhero costume; April pushes Halstead to use unproven medications to help a patient with no other options.

Kevin Donovan reveals details of Barry and Honey Shermans' last day alive, what may have happened inside their home on Dec. 13, 2017, and reconstructs the days leading up to the discovery of their bodies.

A homeowner has high hopes for the renters who move in next door; then, his hopes are dashed, setting the stage for a shocking act of violence that threatens to claim many lives.

Police try to track down the killer of two elderly women.

A mission comes back to haunt Ed; a member of the team struggles to stay alive after getting caught in a sniper's fire.

A homeowner has high hopes for the renters who move in next door; then, his hopes are dashed, setting the stage for a shocking act of violence that threatens to claim many lives.

Police try to track down the killer of two elderly women.

A mission comes back to haunt Ed; a member of the team struggles to stay alive after getting caught in a sniper's fire.

A homeowner has high hopes for the renters who move in next door; then, his hopes are dashed, setting the stage for a shocking act of violence that threatens to claim many lives.

Police try to track down the killer of two elderly women.

A mission comes back to haunt Ed; a member of the team struggles to stay alive after getting caught in a sniper's fire.

While responding to a complaint, Burgess and Sorensen find the body of a 16-year-old girl in a baseball player's (Billy Burke) house; Lindsay receives a mysterious delivery that might have ties to her past.

When the only witness to the rape and murder of a young man gets killed, the team suspects that someone was paid to take the victim out; Antonio receives a job offer from the state attorney's office.

A highly trained killer is believed to be targeting the police department; Lindsay speaks to Antonio about his job with the state's attorney.

Severide is brought in for questioning after it is discovered that his car has been involved in a deadly crash; Lindsay considers meeting her estranged father.

Evidence from the case of a young woman who was shot to death confirms the Chicago P.D. has a serial killer on its hands; Voight welcomes Kenny Rixton to the team when Ruzek takes another assignment.

While on a visit to a small-town festival, Connor encounters the very first vampire, and finds himself fighting the clock to save himself from turning into one.

While responding to a complaint, Burgess and Sorensen find the body of a 16-year-old girl in a baseball player's (Billy Burke) house; Lindsay receives a mysterious delivery that might have ties to her past.

Alliances form, enemies are made and lines are drawn as the passengers search for food and water; when another passenger dies, they realize they may all be targets.

A priest and parishioners block law enforcement from entering a church where two murder suspects are suspected of hiding; Rixton is caught in a lie with Voight.

When the only witness to the rape and murder of a young man gets killed, the team suspects that someone was paid to take the victim out; Antonio receives a job offer from the state attorney's office.

A highly trained killer is believed to be targeting the police department; Lindsay speaks to Antonio about his job with the state's attorney.

Severide is brought in for questioning after it is discovered that his car has been involved in a deadly crash; Lindsay considers meeting her estranged father.

While on a visit to a small-town festival, Connor encounters the very first vampire, and finds himself fighting the clock to save himself from turning into one.

The investigation into the murder of a sex offender leads to a private police force operating independently of the Chicago PD; Halstead checks Jimmy's DNA to find out if he really is Lindsay's father.

Alliances form, enemies are made and lines are drawn as the passengers search for food and water; when another passenger dies, they realize they may all be targets.

CSIs determine that a girl's ex-husband had his parents assassinate her.

Explosive experts sifting through bomb evidence discover a more insidious plan.

A private school owner is kidnapped.

When the crushed body of a young teen who ran away from a treatment center for troubled girls is found in an abandoned building, Voight sends Halstead under cover as a guard to investigate the center from the inside.

The team investigates a home explosion that left a charred body, one injured survivor and no witnesses; Lindsay and Halstead receive a strange warning about Rixton.

Olinsky goes under cover as a hit man for hire after Lindsay is tipped off about a grieving father looking to avenge his daughter's death; when Ruzek returns from his undercover assignment, Voight puts him on patrol duty.

Olinsky's daughter is in critical condition following a massive warehouse fire; Voight investigates the fire's potential origins; intelligence examines connections between the building owner, those who were inside, and potential arson suspects.

A hiker leads intelligence to a young woman being held captive in the woods near Chicago; a former relationship of Halstead's comes back into the picture, much to the surprise of Lindsay.

The investigation leads Intelligence to one of Chicago's wealthiest families after a nighttime photographer is murdered over a piece of mysterious footage; Burgess' sister Nicole visits the district and presents an icy attitude toward Ruzek.

When Burgess realizes that her sister, Nicole, never made it home after a night out with friends, the members of the intelligence team make finding Nicole their top priority.

When the crushed body of a young teen who ran away from a treatment center for troubled girls is found in an abandoned building, Voight sends Halstead under cover as a guard to investigate the center from the inside.

The team investigates a home explosion that left a charred body, one injured survivor and no witnesses; Lindsay and Halstead receive a strange warning about Rixton.

Olinsky goes under cover as a hit man for hire after Lindsay is tipped off about a grieving father looking to avenge his daughter's death; when Ruzek returns from his undercover assignment, Voight puts him on patrol duty.

Olinsky's daughter is in critical condition following a massive warehouse fire; Voight investigates the fire's potential origins; intelligence examines connections between the building owner, those who were inside, and potential arson suspects.

A hiker leads intelligence to a young woman being held captive in the woods near Chicago; a former relationship of Halstead's comes back into the picture, much to the surprise of Lindsay.

The investigation leads Intelligence to one of Chicago's wealthiest families after a nighttime photographer is murdered over a piece of mysterious footage; Burgess' sister Nicole visits the district and presents an icy attitude toward Ruzek.

When Burgess realizes that her sister, Nicole, never made it home after a night out with friends, the members of the intelligence team make finding Nicole their top priority.

When the crushed body of a young teen who ran away from a treatment center for troubled girls is found in an abandoned building, Voight sends Halstead under cover as a guard to investigate the center from the inside.

The team investigates a home explosion that left a charred body, one injured survivor and no witnesses; Lindsay and Halstead receive a strange warning about Rixton.

Olinsky goes under cover as a hit man for hire after Lindsay is tipped off about a grieving father looking to avenge his daughter's death; when Ruzek returns from his undercover assignment, Voight puts him on patrol duty.

Olinsky's daughter is in critical condition following a massive warehouse fire; Voight investigates the fire's potential origins; intelligence examines connections between the building owner, those who were inside, and potential arson suspects.

A hiker leads intelligence to a young woman being held captive in the woods near Chicago; a former relationship of Halstead's comes back into the picture, much to the surprise of Lindsay.

The investigation leads Intelligence to one of Chicago's wealthiest families after a nighttime photographer is murdered over a piece of mysterious footage; Burgess' sister Nicole visits the district and presents an icy attitude toward Ruzek.

When Burgess realizes that her sister, Nicole, never made it home after a night out with friends, the members of the intelligence team make finding Nicole their top priority.

Herrmann is tormented by a difficult decision; Casey is thrown into the spotlight at a fundraiser; Dawson and Brett are faced with the repercussions of their actions; Severide helps with a case regarding homemade explosives; Otis is surprised.

News of a mass shooting brings the members of Firehouse 51 into harrowing territory; Casey investigates the missing money from the fundraiser; Jimmy participates in a boxing match; Chili's erratic behavior continues to be a major issue for Brett.

Chili does not respond well when Severide tries to talk to her about her erratic behavior; members of the firehouse think Casey should run for the position of alderman; Jimmy and Antonio face off in a boxing match.

Firehouse 51 responds to an unusual call from another firehouse; the addition of a new firefighter (Miranda Rae Mayo) has repercussions; Casey realizes that certain voters have personal agendas for wanting him elected.

A propaganda attack causes Casey to reconsider his run for alderman; when a man is trapped inside a burning car, it seems the fire may have been set intentionally; Trudy's nerdy brother plans Mouch's bachelor party; a kidnapping investigation.

Severide is led to reexamine a case from the past while he investigates the discovery of a baby's body in a chimney; with election day nearing, Casey prepares for another confrontation with Alderman.

A call takes a bad turn when Brett witnesses a murder while aiding a victim who has a leg wound; a restaurant fire has people trapped inside a vault; Mouch gets cold feet about his upcoming wedding.

Casey attempts to use political influence to remedy a gang retribution incident; Severide helps Holloway in a dangerous undercover investigation.

Detective Holloway testifies in court as part of an undercover operation, leaving Severide to watch her young son; a fire at an art gallery with a victim trapped inside leads Cruz to make a rash decision.

Herrmann is tormented by a difficult decision; Casey is thrown into the spotlight at a fundraiser; Dawson and Brett are faced with the repercussions of their actions; Severide helps with a case regarding homemade explosives; Otis is surprised.

News of a mass shooting brings the members of Firehouse 51 into harrowing territory; Casey investigates the missing money from the fundraiser; Jimmy participates in a boxing match; Chili's erratic behavior continues to be a major issue for Brett.

Chili does not respond well when Severide tries to talk to her about her erratic behavior; members of the firehouse think Casey should run for the position of alderman; Jimmy and Antonio face off in a boxing match.

Firehouse 51 responds to an unusual call from another firehouse; the addition of a new firefighter (Miranda Rae Mayo) has repercussions; Casey realizes that certain voters have personal agendas for wanting him elected.

A propaganda attack causes Casey to reconsider his run for alderman; when a man is trapped inside a burning car, it seems the fire may have been set intentionally; Trudy's nerdy brother plans Mouch's bachelor party; a kidnapping investigation.