When anti-LAPD billboards emerge throughout the city, the team searches for who's responsible; a car bombing prompts an investigation; Miles reconnects with an old friend; John and Bailey assess their ability to adopt.

Reenie hires Colter to locate the star witness of her and Maxine's lawsuit against a corrupt real estate developer on the eve of trial.

Documentary filmmakers interview the LAPD on a complicated missing person's case connected to John.

The team has mixed feelings when a familiar face returns hoping to prove himself; an influencer gets his fans to come after Wesley; Tim supports Lucy as she prepares for the sergeant's exam.

The team helps skip tracer Randy when his new love interest is kidnapped; Angela and Nyla enlist their moms to help catch a con artist; Wesley is threatened to drop a case.

John and Harper work together to catch Oscar; Angela investigates a bank robbery; Lucy and Tim learn to adapt to her new schedule; Miles' first date takes an unexpected turn.

An April Fools' prank on LAPD's social media leads to citywide chaos; John's T.O. skills are tested; Wesley is assigned a challenging case; Tim and Lucy play a joke on the team.

Sophisticated crime fighters map the psychological and physical terrain of multiple murderers.

Criminals are betrayed by the clues their own bodies leave behind.

Using technology to solve crime.

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 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.

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 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 fiancée is missing; Lindsay asks Halsted a surprising question; Platt is berated by Vogel for going over his head.

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 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.

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 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.

Reenie hires Colter to locate the star witness of her and Maxine's lawsuit against a corrupt real estate developer on the eve of trial.

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.

Detectives must sift through 27 different shoeprints found in a crime scene to identify the killer of social media influencer Sasha Samsudean.

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 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.

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 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 fiancée is missing; Lindsay asks Halsted a surprising question; Platt is berated by Vogel for going over his head.

Murder weapons often hold several critical forensic clues about the crime.

Fire, water, earth - killers call on all the elements in their attempt to cover up their crimes.

In fall 1991, Toronto was paralyzed by the story of a missing six-year-old girl found raped and murdered in the boiler room of her apartment building; with four suspects, CSIs turned to the brand-new science of DNA to catch the killer.

Brett waits for life-changing news; Herrmann encounters a psychic with a grave warning on a call; Kidd finds a new lead on the Homeland Security case.

The members of Firehouse 51 struggle to cope when one of their own dies in a fire; as Lts. Casey and Severide blame each other for the tragedy, Casey also secretly goes through a separation.

Severide hides his serious shoulder injury as he tries to rescue a construction worker from a collapsed building; two teens are trapped in a vehicle.

Casey must decide whether to turn in a cop's son who paralyzed a teen in a drunken-driving accident; Severide learns he has a fractured vertebra; Mills is torn between his mother and the job.

Chief Boden faces accusations that he abandoned a homeless man to die in a warehouse fire; Severide helps an elderly woman; Detective Voight tries to convince Casey not to testify against his son; Shay has to face her ex during a call.

Casey must face the consequences of confronting Detective Voight; Dawson faces disciplinary action; Severide reaches out to an old friend about his injury.

Dawson receives help from a girl she saved; Detective Voight is determined to get Casey to retract his statement.

Brett waits for life-changing news; Herrmann encounters a psychic with a grave warning on a call; Kidd finds a new lead on the Homeland Security case.

The members of Firehouse 51 struggle to cope when one of their own dies in a fire; as Lts. Casey and Severide blame each other for the tragedy, Casey also secretly goes through a separation.

Severide hides his serious shoulder injury as he tries to rescue a construction worker from a collapsed building; two teens are trapped in a vehicle.

Casey must decide whether to turn in a cop's son who paralyzed a teen in a drunken-driving accident; Severide learns he has a fractured vertebra; Mills is torn between his mother and the job.

Chief Boden faces accusations that he abandoned a homeless man to die in a warehouse fire; Severide helps an elderly woman; Detective Voight tries to convince Casey not to testify against his son; Shay has to face her ex during a call.

Casey must face the consequences of confronting Detective Voight; Dawson faces disciplinary action; Severide reaches out to an old friend about his injury.

Dawson receives help from a girl she saved; Detective Voight is determined to get Casey to retract his statement.

Brett waits for life-changing news; Herrmann encounters a psychic with a grave warning on a call; Kidd finds a new lead on the Homeland Security case.

The members of Firehouse 51 struggle to cope when one of their own dies in a fire; as Lts. Casey and Severide blame each other for the tragedy, Casey also secretly goes through a separation.

Severide hides his serious shoulder injury as he tries to rescue a construction worker from a collapsed building; two teens are trapped in a vehicle.

Casey must decide whether to turn in a cop's son who paralyzed a teen in a drunken-driving accident; Severide learns he has a fractured vertebra; Mills is torn between his mother and the job.

Chief Boden faces accusations that he abandoned a homeless man to die in a warehouse fire; Severide helps an elderly woman; Detective Voight tries to convince Casey not to testify against his son; Shay has to face her ex during a call.

Murder weapons often hold several critical forensic clues about the crime.

Fire, water, earth - killers call on all the elements in their attempt to cover up their crimes.

The paranoid delusions of one young man compel him to conspire against the unwitting family next door; over a series of months, his deteriorating mental condition escalates into a midnight shooting, which shakes the foundation of the neighborhood.

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

The SRU is called to what appears to be a home invasion turned into a standoff, but team members soon realize the hostage-taker is no stranger to the family.

The paranoid delusions of one young man compel him to conspire against the unwitting family next door; over a series of months, his deteriorating mental condition escalates into a midnight shooting, which shakes the foundation of the neighborhood.

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

The SRU is called to what appears to be a home invasion turned into a standoff, but team members soon realize the hostage-taker is no stranger to the family.

The paranoid delusions of one young man compel him to conspire against the unwitting family next door; over a series of months, his deteriorating mental condition escalates into a midnight shooting, which shakes the foundation of the neighborhood.

The SRU is called to what appears to be a home invasion turned into a standoff, but team members soon realize the hostage-taker is no stranger to the family.

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

The Firehouse 51 crew has a Thanksgiving to remember when drugs, a car accident, and a gang shooting get in the way of traditional holiday pastimes.

Peter is deeply upset when a young victim is discovered at the site of a train accident; an abusive mother takes dire actions; Severide's injury is aggravated.

Jose Vargas is forced to go on disability after sustaining an injury in a fire; Severide receives a tempting invitation from a woman he saved from a car crash; Cruz tries to end his brother's involvement with a gang.

An expensive necklace goes missing at the scene of a fire, leading to an internal investigation; Cruz makes a desperate decision to save his brother from a gang war; Dawson invites Casey to a party.

Cruz struggles with guilt and decides to make a confession to Casey; Severide asks Dawson for help with his injury; Herrmann is faced with an unpleasant business deal.

Severide finally decides to discuss his injury with Chief Boden; Casey deals with family issues; Dawson responds to a rescue call and realizes a young girl is the only survivor.

Jules is unrelenting in his pursuit of Kelly's father, claiming that Paul assaulted him, while Kelly's previous comments trigger Jules' obsession with Charlie's masculinity; his attempts to intervene in his son's relationships enrage Charlie.

Bumpy finds a new concrete supplier that subverts payments to the Italians; Elise and the Panthers plan a symbolic action against the police; Frank does a job for Colombo; Mayme asks James Baldwin to do a reading for the Fine Arts Board.

Bumpy suffers a heart attack and has visions of Malcolm in the hospital; he's forced to negotiate with Colombo for Chance's safe return; Elise and Sadiq discover a rat in the Panthers; Olympia Gigante returns to get vengeance.

Jose Vargas is forced to go on disability after sustaining an injury in a fire; Severide receives a tempting invitation from a woman he saved from a car crash; Cruz tries to end his brother's involvement with a gang.

An expensive necklace goes missing at the scene of a fire, leading to an internal investigation; Cruz makes a desperate decision to save his brother from a gang war; Dawson invites Casey to a party.

Jules is unrelenting in his pursuit of Kelly's father, claiming that Paul assaulted him, while Kelly's previous comments trigger Jules' obsession with Charlie's masculinity; his attempts to intervene in his son's relationships enrage Charlie.

Bumpy finds a new concrete supplier that subverts payments to the Italians; Elise and the Panthers plan a symbolic action against the police; Frank does a job for Colombo; Mayme asks James Baldwin to do a reading for the Fine Arts Board.

Bumpy suffers a heart attack and has visions of Malcolm in the hospital; he's forced to negotiate with Colombo for Chance's safe return; Elise and Sadiq discover a rat in the Panthers; Olympia Gigante returns to get vengeance.

A family lends a friend a place to stay but kicks her out after a blow-up; instead of moving away, she buys a house across the street, kicking off a years-long dispute ending in a hail of bullets, blood, death, and a community in shock.

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

The team discovers that the federal agent they are working with during the transport of a serial killer is secretly sabotaging their mission.

A family lends a friend a place to stay but kicks her out after a blow-up; instead of moving away, she buys a house across the street, kicking off a years-long dispute ending in a hail of bullets, blood, death, and a community in shock.

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

The team discovers that the federal agent they are working with during the transport of a serial killer is secretly sabotaging their mission.

A family lends a friend a place to stay but kicks her out after a blow-up; instead of moving away, she buys a house across the street, kicking off a years-long dispute ending in a hail of bullets, blood, death, and a community in shock.

The team discovers that the federal agent they are working with during the transport of a serial killer is secretly sabotaging their mission.

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

Choi teams up with an unexpected person to treat a famous tennis player who is afraid his career might be over; Goodwin's new protocols cause a stir.

Archer and Choi respond to a scene that brings back some bad memories; when Carol's condition worsens, Manning is willing to do whatever it takes to get her mom feeling better.

An auto accident sends Goodwin into a spiral as she tries to help a young boy and his mother; Manning's secretive behavior begins to draw the attention of Marcel and Halstead.

Third-year med students begin their rotation in the ED, and Maggie keeps a careful eye on one of them; Manning, whose mom's health takes another decline, tries to cover up how she broke the rules to treat her.

Marcel worries he made a surgical error when a recent transplant patient comes in with complications; Carol is once again in distress; Halstead and Manning must take action to right their wrong.

Carol receives a second chance at life when a new heart becomes available; Choi and Archer find themselves in hot water with an old patient; Halstead faces the consequences of the stolen trial medication.

Halstead returns to Med to help Goodwin with a secret investigation; Archer and Charles deal with twins who insist on being identical inside and out; Stevie and Dylan treat a young patient with sickle cell anemia.

Choi teams up with an unexpected person to treat a famous tennis player who is afraid his career might be over; Goodwin's new protocols cause a stir.

Archer and Choi respond to a scene that brings back some bad memories; when Carol's condition worsens, Manning is willing to do whatever it takes to get her mom feeling better.

An auto accident sends Goodwin into a spiral as she tries to help a young boy and his mother; Manning's secretive behavior begins to draw the attention of Marcel and Halstead.

Third-year med students begin their rotation in the ED, and Maggie keeps a careful eye on one of them; Manning, whose mom's health takes another decline, tries to cover up how she broke the rules to treat her.

Marcel worries he made a surgical error when a recent transplant patient comes in with complications; Carol is once again in distress; Halstead and Manning must take action to right their wrong.

Carol receives a second chance at life when a new heart becomes available; Choi and Archer find themselves in hot water with an old patient; Halstead faces the consequences of the stolen trial medication.

Halstead returns to Med to help Goodwin with a secret investigation; Archer and Charles deal with twins who insist on being identical inside and out; Stevie and Dylan treat a young patient with sickle cell anemia.

Choi teams up with an unexpected person to treat a famous tennis player who is afraid his career might be over; Goodwin's new protocols cause a stir.

Two neighbors who are down on their luck bond over their struggle; when one buries the other in debt with a hustle gone wrong, things fall apart, but their co-dependence keeps them entwined until an act of revenge.

The disappearance of millionaire Frank Black.

The team is called to a robbery at a local store when two boys take hostages after their escape plan fails.

Two neighbors who are down on their luck bond over their struggle; when one buries the other in debt with a hustle gone wrong, things fall apart, but their co-dependence keeps them entwined until an act of revenge.

The disappearance of millionaire Frank Black.

The team is called to a robbery at a local store when two boys take hostages after their escape plan fails.

Two neighbors who are down on their luck bond over their struggle; when one buries the other in debt with a hustle gone wrong, things fall apart, but their co-dependence keeps them entwined until an act of revenge.

The team is called to a robbery at a local store when two boys take hostages after their escape plan fails.

The disappearance of millionaire Frank Black.

During the holidays, the first responders must deal with a stampede at a toy store, a mistletoe stunt gone awry and neighbors competing in a Christmas light showdown; Bobby contemplates his future with Athena; Chimney and Buck try to help Maddie.

Bobby meets Athena's parents for the first time; Maddie attempts to end her marriage for good, causing Doug to insinuate himself even deeper into Chimney's life.

Chimney's history at Station 118 is explored as he works hard to become the paramedic and firefighter he is known to be.

The first responders rally together to search for a missing Maddie.

The call center is hit with a system-wide power outage and must go old school to respond to emergencies; the first responders must deal with explosions in multiple homes and a difficult childbirth; Michael confronts Bobby about parenting his kids.

When a going-away party for a bank manager turns into an emergency, the first responders are accused of pulling off a daring heist.

After his devastating family tragedy in Minnesota, Bobby Nash moves to Los Angeles to start over, where he becomes captain of the 118 and meets Athena Grant for the first time.

The first responders deal with a calamity at a chocolate factory; a mail bomb explosion; Eddie receives some surprising news from Shannon; Maddie contemplates her future in the call center.

Bobby meets Athena's parents for the first time; Maddie attempts to end her marriage for good, causing Doug to insinuate himself even deeper into Chimney's life.

Chimney's history at Station 118 is explored as he works hard to become the paramedic and firefighter he is known to be.

The first responders rally together to search for a missing Maddie.

The call center is hit with a system-wide power outage and must go old school to respond to emergencies; the first responders must deal with explosions in multiple homes and a difficult childbirth; Michael confronts Bobby about parenting his kids.

When a going-away party for a bank manager turns into an emergency, the first responders are accused of pulling off a daring heist.

After his devastating family tragedy in Minnesota, Bobby Nash moves to Los Angeles to start over, where he becomes captain of the 118 and meets Athena Grant for the first time.

During the holidays, the first responders must deal with a stampede at a toy store, a mistletoe stunt gone awry and neighbors competing in a Christmas light showdown; Bobby contemplates his future with Athena; Chimney and Buck try to help Maddie.

A bachelor is welcomed into a neighborhood, but things go south when he starts disputing the property lines; the warring parties film each other extensively, but the cameras aren't running when violence erupts.

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

A couple kidnaps their baby from its adoptive parents and steals their car to flee the scene after changing their minds about giving the child up.

A bachelor is welcomed into a neighborhood, but things go south when he starts disputing the property lines; the warring parties film each other extensively, but the cameras aren't running when violence erupts.

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

A couple kidnaps their baby from its adoptive parents and steals their car to flee the scene after changing their minds about giving the child up.

A bachelor is welcomed into a neighborhood, but things go south when he starts disputing the property lines; the warring parties film each other extensively, but the cameras aren't running when violence erupts.

A couple kidnaps their baby from its adoptive parents and steals their car to flee the scene after changing their minds about giving the child up.

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

Vanessa and Archer disagree on how to handle the victim of a motorcycle accident; Scott and Charles deal with a UNICEF negotiator with repressed trauma; Hammer and Halstead treat a high schooler with Addison's disease and a clingy mother.

Scott and Halstead deal with a dishonest patient whose lupus is in remission; a wealthy donor makes inappropriate advances toward Hammer; Vanessa, Marcel and Charles try to convince a young woman to have life-saving surgery.

Charles helps Scott with a longtime patient who was recently diagnosed with schizophrenia; Hammer, Maggie and Vanessa investigate the legitimacy of a patient's cancer diagnosis; Crockett is caught off guard; Will pitches a new medical technology.

Scott and Charles treat patients suffering from glass child syndrome and misdiagnosed ADHD; Crockett has to navigate hospital politics when he cares for a surgeon's daughter; Halstead and Hammer must lay egos aside to help save an elderly patient.

Hammer's worlds collide when her mother becomes her patient; Scott's history with the father of a patient interferes with his perception of a case; Crockett's allegiances are challenged when his patient's liver is a potential transplant match.

Marcel helps Blake replace a patient's liver; Taylor tries to prove herself; Halstead continues to pursue the truth about Cooper; Choi gets closer to returning to life in the ED.

Seventeen-year-old Brittanee Drexel sneaks off to Myrtle Beach, S.C., to join her friends for spring break; but she goes missing two days later.

In 2001, 20-year-old Lynsie Ekelund lives with her mother, Nancy; the two are incredibly close, and Nancy is Lynsie's primary caregiver after a car accident left one side of Lynsie's body partially paralyzed; one night in 2001, unbeknownst to her mother, Lynsie plans to travel to spring break hotspot San Diego for a night of clubbing with friends; when Lynsie doesn't arrive home the next day, her mom suspects something has gone horribly wrong.

Scott and Halstead deal with a dishonest patient whose lupus is in remission; a wealthy donor makes inappropriate advances toward Hammer; Vanessa, Marcel and Charles try to convince a young woman to have life-saving surgery.

Charles helps Scott with a longtime patient who was recently diagnosed with schizophrenia; Hammer, Maggie and Vanessa investigate the legitimacy of a patient's cancer diagnosis; Crockett is caught off guard; Will pitches a new medical technology.

Scott and Charles treat patients suffering from glass child syndrome and misdiagnosed ADHD; Crockett has to navigate hospital politics when he cares for a surgeon's daughter; Halstead and Hammer must lay egos aside to help save an elderly patient.

Hammer's worlds collide when her mother becomes her patient; Scott's history with the father of a patient interferes with his perception of a case; Crockett's allegiances are challenged when his patient's liver is a potential transplant match.

Marcel helps Blake replace a patient's liver; Taylor tries to prove herself; Halstead continues to pursue the truth about Cooper; Choi gets closer to returning to life in the ED.

Seventeen-year-old Brittanee Drexel sneaks off to Myrtle Beach, S.C., to join her friends for spring break; but she goes missing two days later.

In 2001, 20-year-old Lynsie Ekelund lives with her mother, Nancy; the two are incredibly close, and Nancy is Lynsie's primary caregiver after a car accident left one side of Lynsie's body partially paralyzed; one night in 2001, unbeknownst to her mother, Lynsie plans to travel to spring break hotspot San Diego for a night of clubbing with friends; when Lynsie doesn't arrive home the next day, her mom suspects something has gone horribly wrong.

When a resident revives an HOA to beautify her community, some neighbors are unhappy, believing the organization is fraudulent; tensions escalate when liens are placed on the house of a couple unwilling to pay, ending in a suburban shootout.

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

The SRU is called in when a bank employee whose wife is being held captive hacks into the computer system to steal money to pay off her captors.

When a resident revives an HOA to beautify her community, some neighbors are unhappy, believing the organization is fraudulent; tensions escalate when liens are placed on the house of a couple unwilling to pay, ending in a suburban shootout.

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

The SRU is called in when a bank employee whose wife is being held captive hacks into the computer system to steal money to pay off her captors.

When a resident revives an HOA to beautify her community, some neighbors are unhappy, believing the organization is fraudulent; tensions escalate when liens are placed on the house of a couple unwilling to pay, ending in a suburban shootout.

The SRU is called in when a bank employee whose wife is being held captive hacks into the computer system to steal money to pay off her captors.

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

When a college basketball star is threatened, Danny and Lena race to protect them while solving a murder; deeply personal conflicts and moral dilemmas surface, forcing the team to confront difficult truths about loyalty, identity and justice.

After a life-altering incident, John Nolan decides to pursue his dream of becoming a police officer; as the force's oldest rookie, John is met with skepticism from some higher-ups.

Talia forces Nolan to confront his personal moral instincts after he encounters a kidnapping victim; Lucy is temporarily placed with a new training officer who tests her patience; Jackson must confront his failures.

After Nolan and Talia lose control of a crime scene, they begin to debate whether people are fundamentally good or bad; Lucy worries Tim is enabling his wife's destructive behavior and not taking care of himself.

The rookies are temporarily paired with new training officers; when Nolan and Lopez track down an escaped criminal, they discover a little kindness goes a long way; Jackson is forced to face his fears when he is partnered with officer Bradford.

When a college basketball star is threatened, Danny and Lena race to protect them while solving a murder; deeply personal conflicts and moral dilemmas surface, forcing the team to confront difficult truths about loyalty, identity and justice.

Colter's search for a woman who went missing from a rehab facility takes an unexpected turn when he runs into Billie, uncovering a possible link between each of their cases.

Nolan, the rookies and their training officers get involved in a competition that pits them against each other; officer Lucy Chen notices officer Tim Bradford is obsessed with winning at all costs.

After a life-altering incident, John Nolan decides to pursue his dream of becoming a police officer; as the force's oldest rookie, John is met with skepticism from some higher-ups.

Colter's search for a woman who went missing from a rehab facility takes an unexpected turn when he runs into Billie, uncovering a possible link between each of their cases.

After Nolan and Talia lose control of a crime scene, they begin to debate whether people are fundamentally good or bad; Lucy worries Tim is enabling his wife's destructive behavior and not taking care of himself.

The rookies are temporarily paired with new training officers; when Nolan and Lopez track down an escaped criminal, they discover a little kindness goes a long way; Jackson is forced to face his fears when he is partnered with officer Bradford.

The team must help capture a cop and his former mentor from the academy after he becomes a fugitive following an assault; Officer Tim Bradford needs Officer Lucy Chen to learn to predict the moves of criminals in order to capture them.

Sgt. Grey informs officer Nolan and officer Bishop that they are going to have a movie director as a ride-along; officer Bradford learns that his wife has been arrested for drug possession.

Nolan and Bishop respond to a silent alarm call at a local convenience store where two men are attempting to rob the place; Bishop helps coordinate a drug bust.

A private school owner is kidnapped.

An abandoned suitcase containing a young woman's body, leads to a mystery of a second woman missing too.

The murder of a gay couple in rural California leads investigators into the world of hate crimes.

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.

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.

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.

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.

Colter's search for a woman who went missing from a rehab facility takes an unexpected turn when he runs into Billie, uncovering a possible link between each of their cases.

Seventeen-year-old Brittanee Drexel sneaks off to Myrtle Beach, S.C., to join her friends for spring break; but she goes missing two days later.

In 2001, 20-year-old Lynsie Ekelund lives with her mother, Nancy; the two are incredibly close, and Nancy is Lynsie's primary caregiver after a car accident left one side of Lynsie's body partially paralyzed; one night in 2001, unbeknownst to her mother, Lynsie plans to travel to spring break hotspot San Diego for a night of clubbing with friends; when Lynsie doesn't arrive home the next day, her mom suspects something has gone horribly wrong.

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.

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.

Investigators are drawn into the dark world of high-end prostitution, illegal aliens and Russian organized crime.

Ontario police conduct a manhunt for the prime suspects in four brutal murders.

A nurse is the main suspect of five bodies found in a wooded area in central Florida.

A man dies in a fire set by a troubled teenager; Severide contacts his father; Otis fills in for some shifts at the slowest firehouse in the city; Shay and Dawson wind up in a bad situation.

Severide realizes he shares a similar past with the lieutenant who has been helping out at the firehouse; Dawson shares a secret with Shay; Casey faces family issues.

Dawson turns to an unlikely source for assistance as she tries to help her brother; Severide does a favor for Lt. Whaley; Herrmann and Otis make tough discoveries about their silent partner.

Cruz puts himself and his fellow firefighters in danger; Casey tries to resolve issues with his sister and mother; the team assists the bomb squad with a dangerous call.

When Severide's father (Treat Williams) visits, he clashes with Chief Boden over a former colleague's death; Shay makes a decision about Clarice; the mystery about Herrmann, Otis and Dawson's bar is revealed.

Mills questions Bennie about the fire that killed Mills' father; Casey, Severide and Bennie investigate two mysterious diner fires.

A failed rescue attempt deeply affects the men and women of firehouse 51; Dawson and Shay deal with a junkie's crazy behavior during a call; the team upsets local drug dealers.

A man dies in a fire set by a troubled teenager; Severide contacts his father; Otis fills in for some shifts at the slowest firehouse in the city; Shay and Dawson wind up in a bad situation.

Severide realizes he shares a similar past with the lieutenant who has been helping out at the firehouse; Dawson shares a secret with Shay; Casey faces family issues.

Dawson turns to an unlikely source for assistance as she tries to help her brother; Severide does a favor for Lt. Whaley; Herrmann and Otis make tough discoveries about their silent partner.

Cruz puts himself and his fellow firefighters in danger; Casey tries to resolve issues with his sister and mother; the team assists the bomb squad with a dangerous call.

When Severide's father (Treat Williams) visits, he clashes with Chief Boden over a former colleague's death; Shay makes a decision about Clarice; the mystery about Herrmann, Otis and Dawson's bar is revealed.

Mills questions Bennie about the fire that killed Mills' father; Casey, Severide and Bennie investigate two mysterious diner fires.

A failed rescue attempt deeply affects the men and women of firehouse 51; Dawson and Shay deal with a junkie's crazy behavior during a call; the team upsets local drug dealers.

A man dies in a fire set by a troubled teenager; Severide contacts his father; Otis fills in for some shifts at the slowest firehouse in the city; Shay and Dawson wind up in a bad situation.

Severide realizes he shares a similar past with the lieutenant who has been helping out at the firehouse; Dawson shares a secret with Shay; Casey faces family issues.

Dawson turns to an unlikely source for assistance as she tries to help her brother; Severide does a favor for Lt. Whaley; Herrmann and Otis make tough discoveries about their silent partner.

Cruz puts himself and his fellow firefighters in danger; Casey tries to resolve issues with his sister and mother; the team assists the bomb squad with a dangerous call.

When Severide's father (Treat Williams) visits, he clashes with Chief Boden over a former colleague's death; Shay makes a decision about Clarice; the mystery about Herrmann, Otis and Dawson's bar is revealed.

Investigators are drawn into the dark world of high-end prostitution, illegal aliens and Russian organized crime.

Ontario police conduct a manhunt for the prime suspects in four brutal murders.

A couple moves to the country and ruins the quiet their new neighbors have enjoyed for years; parties, loud kids, and a junk-strewn lawn push the Vietnam vet next door to build a fence, but violence boils over when property lines are disputed.

A search mission for three women missing in Yosemite Park turns to a murder investigation when two are discovered in the trunk of their burned out car.

The team must diffuse a volatile situation when a student pushed to the limit by bullies brings a gun to school.

A couple moves to the country and ruins the quiet their new neighbors have enjoyed for years; parties, loud kids, and a junk-strewn lawn push the Vietnam vet next door to build a fence, but violence boils over when property lines are disputed.

A search mission for three women missing in Yosemite Park turns to a murder investigation when two are discovered in the trunk of their burned out car.

The team must diffuse a volatile situation when a student pushed to the limit by bullies brings a gun to school.

A couple moves to the country and ruins the quiet their new neighbors have enjoyed for years; parties, loud kids, and a junk-strewn lawn push the Vietnam vet next door to build a fence, but violence boils over when property lines are disputed.

The team must diffuse a volatile situation when a student pushed to the limit by bullies brings a gun to school.

A search mission for three women missing in Yosemite Park turns to a murder investigation when two are discovered in the trunk of their burned out car.

A paramedic candidate joins Shay and Dawson for a few shifts; Cindy Herrmann experiences pregnancy complications while her husband is out of town; Casey receives an unexpected visit.

Detective Voight shows up, looking to cash in the favor Dawson owes him; Casey's social life takes on a familiar pattern; Molly prepares for the grand opening of Dawson, Herrmann and Otis's bar; Severide faces a threat to his career.

Severide is accused of sexual misconduct; Casey starts to find satisfaction in his personal life; Dawson and Mills face challenges as they try to take their relationship to the next level; the squad faces a harrowing building collapse.

Lt. Casey must work with Voight and the Intelligence Unit; Shay grows increasingly excited about the prospect of motherhood; everyone comes together to support the opening of Molly's.

The squad must help defuse a volatile situation at the jail; Shay continues to be hopeful about motherhood; Herrmann's wife goes into labor; Mills and Dawson face important decisions.