After a veteran stuntman disappears following a risky stunt, his girlfriend calls Colter to investigate.

Major revelations threaten to upend Angelo's family; Joe gets the opportunity of a lifetime.

Nolan and Celina investigate a cash deposit linked to an old DEA case; Wesley grows increasingly concerned about his deposition and is shocked when he realizes Elijah's attorney is a familiar face from his past.

Officer John Nolan and Celina witness a shooting and realize the victim is already dead; Bailey has been feeling off-center since the proposal, leaving Nolan to wonder what he can do to make her feel better.

Officers John Nolan and Celina Juarez are in a race against time to stop the source of an explosive rampage.

Officer John Nolan moves closer to his new role as a training officer; John must uncover the truth about another officer's suicide; Lucy's successful undercover assignment earns her an invitation for specialized training.

Investigating a series of fires in California's Sam Joaquin Valley that killed four, investigators determine a respected arson investigator may be the arsonist.

Investigators work to solve a double homicide in the small town of Hudson, Wisc.

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

Atwater settles into his new role; Lindsay turns to Voight for help; Jin is confronted about his meetings with Stillwell.

As the Sheldon Jin investigation moves forward, Internal Affairs keeps a close eye on Voight; Voight's vehicle is T-boned while following an armored car carrying Ruzek; Burgess meets her new partner; Lindsay visits her mom.

Several murder victims are found with a dollar bill pinned to their chests; Voight makes a discovery about a friend; a series of home invasions.

When a bartender takes a bullet intended for Halstead, the bounty on him becomes more real; following a tense interaction, Platt and Nadia reach an understanding.

The team races against the clock when two teenage girls disappear; Voight seeks honest answers from the father of one of the girls.

Voight is attacked and abducted while trying to help Olive; Roman and Burgess search for a girl who has taken off with a police badge.

Ruzek and Atwater go under cover as prison inmates in order to find the man they believe killed a 10-year-old girl; Burgess and Roman give a tour of the district to some boys they believe are part of the Police Explorers program.

Atwater settles into his new role; Lindsay turns to Voight for help; Jin is confronted about his meetings with Stillwell.

As the Sheldon Jin investigation moves forward, Internal Affairs keeps a close eye on Voight; Voight's vehicle is T-boned while following an armored car carrying Ruzek; Burgess meets her new partner; Lindsay visits her mom.

Several murder victims are found with a dollar bill pinned to their chests; Voight makes a discovery about a friend; a series of home invasions.

Port Wenn goes on lockdown when a patient with fleas sparks fears of a plague outbreak; Martin must deal with the town gossip when it revolves around him and Louisa; Aunt Sarah feels betrayed by Greg and George; Louisa has an epiphany.

After a veteran stuntman disappears following a risky stunt, his girlfriend calls Colter to investigate.

Major revelations threaten to upend Angelo's family; Joe gets the opportunity of a lifetime.

A tightknit community is left shattered when its school superintendent is gunned down at his upstate New York home; law enforcement's big break comes when a panic-stricken caller claims to know who the killer is.

Port Wenn goes on lockdown when a patient with fleas sparks fears of a plague outbreak; Martin must deal with the town gossip when it revolves around him and Louisa; Aunt Sarah feels betrayed by Greg and George; Louisa has an epiphany.

As the Sheldon Jin investigation moves forward, Internal Affairs keeps a close eye on Voight; Voight's vehicle is T-boned while following an armored car carrying Ruzek; Burgess meets her new partner; Lindsay visits her mom.

Several murder victims are found with a dollar bill pinned to their chests; Voight makes a discovery about a friend; a series of home invasions.

When a bartender takes a bullet intended for Halstead, the bounty on him becomes more real; following a tense interaction, Platt and Nadia reach an understanding.

The team races against the clock when two teenage girls disappear; Voight seeks honest answers from the father of one of the girls.

Voight is attacked and abducted while trying to help Olive; Roman and Burgess search for a girl who has taken off with a police badge.

Ruzek and Atwater go under cover as prison inmates in order to find the man they believe killed a 10-year-old girl; Burgess and Roman give a tour of the district to some boys they believe are part of the Police Explorers program.

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

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.

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.

Severide gets angry at Cruz when he feels his orders were disobeyed in the field; Boden reconnects with an old high school friend during a call to a house fire. Herrmann has issues when one of his favorite knick-knacks from Molly's goes missing.

A horrible storm wreaks havoc on Chicago and impacts Firehouse 51 when the power goes off; when a little boy mysteriously shows up at the station, everyone works together to uncover who he belongs to; Foster and Kidd argue about Severide.

Severide and Boden search to uncover whether arson was the cause of a fire at a hair salon; Mouch, Herrmann, Otis and Kidd make a startling discovery while tracking down the missing piercing nozzle from Engine 27.

A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire; Firehouse 51 celebrates a retirement party.

Severide and Kidd continue to investigate Benny's old arson case; unexpected news leads Brett to ponder a big decision; all hell breaks loose.

The mattress factory fire spirals out of control; truck and squad lay it on the line in hopes of getting the trapped victims out alive.

Casey struggles to get Boden to sign off on an energetic new recruit; Foster extends an olive branch to her irritating new medic; Otis inspires Herrmann to seek new partners at Molly's; Brett realizes life in Fowlerton will take some getting used to.

Severide gets angry at Cruz when he feels his orders were disobeyed in the field; Boden reconnects with an old high school friend during a call to a house fire. Herrmann has issues when one of his favorite knick-knacks from Molly's goes missing.

A horrible storm wreaks havoc on Chicago and impacts Firehouse 51 when the power goes off; when a little boy mysteriously shows up at the station, everyone works together to uncover who he belongs to; Foster and Kidd argue about Severide.

Severide and Boden search to uncover whether arson was the cause of a fire at a hair salon; Mouch, Herrmann, Otis and Kidd make a startling discovery while tracking down the missing piercing nozzle from Engine 27.

A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire; Firehouse 51 celebrates a retirement party.

Severide and Kidd continue to investigate Benny's old arson case; unexpected news leads Brett to ponder a big decision; all hell breaks loose.

The mattress factory fire spirals out of control; truck and squad lay it on the line in hopes of getting the trapped victims out alive.

Casey struggles to get Boden to sign off on an energetic new recruit; Foster extends an olive branch to her irritating new medic; Otis inspires Herrmann to seek new partners at Molly's; Brett realizes life in Fowlerton will take some getting used to.

Severide gets angry at Cruz when he feels his orders were disobeyed in the field; Boden reconnects with an old high school friend during a call to a house fire. Herrmann has issues when one of his favorite knick-knacks from Molly's goes missing.

A horrible storm wreaks havoc on Chicago and impacts Firehouse 51 when the power goes off; when a little boy mysteriously shows up at the station, everyone works together to uncover who he belongs to; Foster and Kidd argue about Severide.

Severide and Boden search to uncover whether arson was the cause of a fire at a hair salon; Mouch, Herrmann, Otis and Kidd make a startling discovery while tracking down the missing piercing nozzle from Engine 27.

A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire; Firehouse 51 celebrates a retirement party.

Severide and Kidd continue to investigate Benny's old arson case; unexpected news leads Brett to ponder a big decision; all hell breaks loose.

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

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.

Neighbors take sides after someone decides to build a dream home on their quiet street; longtime friends turn into hardcore enemies and death is right around the corner.

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

Spike finds himself held at gunpoint; the team races to a shots-fired call.

Neighbors take sides after someone decides to build a dream home on their quiet street; longtime friends turn into hardcore enemies and death is right around the corner.

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

Spike finds himself held at gunpoint; the team races to a shots-fired call.

Neighbors take sides after someone decides to build a dream home on their quiet street; longtime friends turn into hardcore enemies and death is right around the corner.

Spike finds himself held at gunpoint; the team races to a shots-fired call.

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

Brett and Foster question the suspicious circumstances surrounding an attack at a juvenile detention center; a convoluted new technology at Firehouse 51 tests everybody's patience; Kidd is chosen to represent the district at a leadership conference.

A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago's finest first responders to work together alongside the CDC to resolve the dangerous situation; Severide suspects something bigger is happening.

Kidd must prove herself at the National Firefighter Leadership Conference, while the rest of Firehouse 51 is called to two eerily similar car wrecks; Mouch tries to keep the firehouse informed by starting a newsletter; Cruz deals with a heartbreak.

Cruz and Severide suspect foul play when a fire started by an elderly woman turns deadly. Kidd, Foster and Brett create a women's-only lounge. Firehouse 51 celebrates some good news.

Severide must make a tough decision about the future of his career at Firehouse 51; Herrmann deals with the consequences of his temper; Cruz is excited to demonstrate the Slamigan at the Firefighting Expo; Commissioner Grissom returns.

Severide starts off on the wrong foot at his Office of Fire Investigation assignment when, despite orders, he reopens an old case; Herrmann is on a mission to discover what caused an apartment fire; Kidd finds herself burning the candle at both ends.

Martin and Vicki go to war with a rival brand; Joyce and Nova go undercover; Susi tries to get out of the crime business for good.

Jose Battle asks for a favor from his new partner Bumpy Johnson: a political assassination; Malcolm X is detained by Saudi authorities when he travels to Mecca; the district attorney's office targets Mayme for her gangster ties.

When two uniformed cops attack the Geechee, Bumpy and Battle make a play for control of local 27th police precinct; Stella decides whether to rat Colombo out to the Feds. Meanwhile, Malcolm's life is threatened in Cairo.

Kidd must prove herself at the National Firefighter Leadership Conference, while the rest of Firehouse 51 is called to two eerily similar car wrecks; Mouch tries to keep the firehouse informed by starting a newsletter; Cruz deals with a heartbreak.

Cruz and Severide suspect foul play when a fire started by an elderly woman turns deadly. Kidd, Foster and Brett create a women's-only lounge. Firehouse 51 celebrates some good news.

Martin and Vicki go to war with a rival brand; Joyce and Nova go undercover; Susi tries to get out of the crime business for good.

Jose Battle asks for a favor from his new partner Bumpy Johnson: a political assassination; Malcolm X is detained by Saudi authorities when he travels to Mecca; the district attorney's office targets Mayme for her gangster ties.

When two uniformed cops attack the Geechee, Bumpy and Battle make a play for control of local 27th police precinct; Stella decides whether to rat Colombo out to the Feds. Meanwhile, Malcolm's life is threatened in Cairo.

In a tight-knit community, a new family commits a slight against a community member causing all of their neighbors to turn against them and leading to an explosive conclusion.

Phoenix police are faced with a unique serial killer team who get their thrills stalking and shooting innocent people at night.

Parker is confronted with devastating news; an explosion traps Jules.

In a tight-knit community, a new family commits a slight against a community member causing all of their neighbors to turn against them and leading to an explosive conclusion.

Phoenix police are faced with a unique serial killer team who get their thrills stalking and shooting innocent people at night.

Parker is confronted with devastating news; an explosion traps Jules.

In a tight-knit community, a new family commits a slight against a community member causing all of their neighbors to turn against them and leading to an explosive conclusion.

Parker is confronted with devastating news; an explosion traps Jules.

Phoenix police are faced with a unique serial killer team who get their thrills stalking and shooting innocent people at night.

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.

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.

In 1862, the Van Lews, upset over the Balls Bluff defeat, fret over how to get General McClellan to take them seriously; at the Confederate fundraiser, Mary Jane informs Eliza and Elizabeth of more messages sewn into her donated clothes.

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.

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.

Daily gossip and celebrity news from home and abroad; roving reporters and Hollywood correspondents provide must-have details on scoops.

In 1862, the Van Lews, upset over the Balls Bluff defeat, fret over how to get General McClellan to take them seriously; at the Confederate fundraiser, Mary Jane informs Eliza and Elizabeth of more messages sewn into her donated clothes.

Mixing business with pleasure spells murder for neighboring best friends.

Phoenix police face a unique serial killer team that is stalking and killing innocent people.

A firefighter is rushed to the hospital; Simon is forced to make a choice.

Mixing business with pleasure spells murder for neighboring best friends.

Phoenix police face a unique serial killer team that is stalking and killing innocent people.

A firefighter is rushed to the hospital; Simon is forced to make a choice.

Mixing business with pleasure spells murder for neighboring best friends.

A firefighter is rushed to the hospital; Simon is forced to make a choice.

Phoenix police face a unique serial killer team that is stalking and killing innocent people.

The 118 responds to calls dealing with parents and their children, including a disastrous birthday party thrown by a mommy blogger; Athena and Michael talk to May about her past suicide attempt; Chimney and Maddie adjust to life with their newborn.

The members of the 118 rush to the site of a hit-and-run that leaves a familiar face in critical condition; with Buck's help, Athena investigates the case of a missing woman; Josh recalls an emergency in 2006 that led him to become a first responder.

When a famous mystery writer dies, Athena, Bobby and the 118 respond to the chaos caused by a citywide manhunt for buried treasure the author left behind.

The members of the 118 make calls to save a bridezilla at a disastrous wedding; Hen plays medical detective when her mother falls ill; Eddie and Christopher receive a visit from Carla; Athena uncovers a secret Bobby has been hiding.

Athena and the 118 are on high alert when a sniper is targeting members of the LAFD; Maddie makes a life decision.

A series of ransomware threats leads to emergencies for the 118, including a helicopter crash at a hospital and an air traffic control tower system failure; the case of the realtor serial rapist goes to trial.

Maggie and Cal continue to deal with the fallout of Liam's arrival.

Martin Best is a brilliant surgeon who abruptly leaves his illustrious career in Boston to become the general practitioner in a quaint East Coast fishing village where he spent summers as a child. Unfortunately, Martin's blunt and borderline rude bedside manner rubs the quirky, needy locals the wrong way, and he quickly alienates the town, even though he's all they've got. Although Martin can expertly address any medical ailment or mystery in this idiosyncratic town, he's really just desperate to be left the hell alone. Instead, he keeps getting dragged right smack into the middle of their personal chaos, feuds and fantasies. What the locals don't know is that Martin's terse demeanor masks a debilitating new phobia and deep-seated psychological issues that prevent him from experiencing true intimacy with anyone. But tenacity is the creed of everyone in their small village, and the people who live there may be exactly what the doctor ordered.

The members of the 118 rush to the site of a hit-and-run that leaves a familiar face in critical condition; with Buck's help, Athena investigates the case of a missing woman; Josh recalls an emergency in 2006 that led him to become a first responder.

When a famous mystery writer dies, Athena, Bobby and the 118 respond to the chaos caused by a citywide manhunt for buried treasure the author left behind.

The members of the 118 make calls to save a bridezilla at a disastrous wedding; Hen plays medical detective when her mother falls ill; Eddie and Christopher receive a visit from Carla; Athena uncovers a secret Bobby has been hiding.

Athena and the 118 are on high alert when a sniper is targeting members of the LAFD; Maddie makes a life decision.

A series of ransomware threats leads to emergencies for the 118, including a helicopter crash at a hospital and an air traffic control tower system failure; the case of the realtor serial rapist goes to trial.

Maggie and Cal continue to deal with the fallout of Liam's arrival.

Martin Best is a brilliant surgeon who abruptly leaves his illustrious career in Boston to become the general practitioner in a quaint East Coast fishing village where he spent summers as a child. Unfortunately, Martin's blunt and borderline rude bedside manner rubs the quirky, needy locals the wrong way, and he quickly alienates the town, even though he's all they've got. Although Martin can expertly address any medical ailment or mystery in this idiosyncratic town, he's really just desperate to be left the hell alone. Instead, he keeps getting dragged right smack into the middle of their personal chaos, feuds and fantasies. What the locals don't know is that Martin's terse demeanor masks a debilitating new phobia and deep-seated psychological issues that prevent him from experiencing true intimacy with anyone. But tenacity is the creed of everyone in their small village, and the people who live there may be exactly what the doctor ordered.

On a quiet cul de sac, a contractor helps his neighbor rent the home beside him; unwittingly trapping himself between an increasingly unhinged presence on one side and the man's hostile parents on the other.

Police in Abbotsford, B.C. hunt a stalker who has left one teen dead and another barely alive.

Team One is in pursuit of James Mitchell, an armed man hunting for his ex-wife.

On a quiet cul de sac, a contractor helps his neighbor rent the home beside him; unwittingly trapping himself between an increasingly unhinged presence on one side and the man's hostile parents on the other.

Police in Abbotsford, B.C. hunt a stalker who has left one teen dead and another barely alive.

Team One is in pursuit of James Mitchell, an armed man hunting for his ex-wife.

On a quiet cul de sac, a contractor helps his neighbor rent the home beside him; unwittingly trapping himself between an increasingly unhinged presence on one side and the man's hostile parents on the other.

Team One is in pursuit of James Mitchell, an armed man hunting for his ex-wife.

Police in Abbotsford, B.C. hunt a stalker who has left one teen dead and another barely alive.

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.

A mother is desperate to help her daughter beat cancer; Dr. Charles asks Sarah to conduct his daughter Robin's psych evaluation; Dr. Choi puts pressure on Noah when a residency spot becomes available.

Dr. Rhodes challenges Dr. Charles and other hospital staff over treatment for Robin; Dr. Manning seeks help from Detective Halstead when a sensitive case involving a young girl turns into a crime; Goodwin helps a friend in distress.

An audacious new doctor arrives at Chicago Med; Dr. Halstead and Dr. Manning team up to diagnose a Syrian refugee who has no medical record; Robin is admitted back into the hospital; Noah hosts a graduation party.

The doctors of Chicago Med try to bring justice to the perpetrator in the shooting of Dr. Charles; Robin is discharged from the rehabilitation center, but Dr. Rhodes worries that her problems are not quite resolved; Maggie sticks up for a patient.

Dr. Manning goes to extreme measures to help a fearful pregnant woman; Dr. Choi and April try to strike a balance at work; Dr. Charles and Dr. Reese continue to disagree about their patients.

In Austin, Texas, a lone gunman kills 25-year-old professional cyclist Moriah Wilson; and the execution-style murder tells investigators the hit was personal.

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.

A mother is desperate to help her daughter beat cancer; Dr. Charles asks Sarah to conduct his daughter Robin's psych evaluation; Dr. Choi puts pressure on Noah when a residency spot becomes available.

Dr. Rhodes challenges Dr. Charles and other hospital staff over treatment for Robin; Dr. Manning seeks help from Detective Halstead when a sensitive case involving a young girl turns into a crime; Goodwin helps a friend in distress.

An audacious new doctor arrives at Chicago Med; Dr. Halstead and Dr. Manning team up to diagnose a Syrian refugee who has no medical record; Robin is admitted back into the hospital; Noah hosts a graduation party.

The doctors of Chicago Med try to bring justice to the perpetrator in the shooting of Dr. Charles; Robin is discharged from the rehabilitation center, but Dr. Rhodes worries that her problems are not quite resolved; Maggie sticks up for a patient.

Dr. Manning goes to extreme measures to help a fearful pregnant woman; Dr. Choi and April try to strike a balance at work; Dr. Charles and Dr. Reese continue to disagree about their patients.

In Austin, Texas, a lone gunman kills 25-year-old professional cyclist Moriah Wilson; and the execution-style murder tells investigators the hit was personal.

In Harlem, N.Y., a couple discovers it's not better to have the upstairs apartment.

A killer who leaves messages signed "Jack" terrorizes East Point, Ga.

An abduction at a doctor's office leads to the team facing a desperate felon.

In Harlem, N.Y., a couple discovers it's not better to have the upstairs apartment.

A killer who leaves messages signed "Jack" terrorizes East Point, Ga.

An abduction at a doctor's office leads to the team facing a desperate felon.

In Harlem, N.Y., a couple discovers it's not better to have the upstairs apartment.

An abduction at a doctor's office leads to the team facing a desperate felon.

A killer who leaves messages signed "Jack" terrorizes East Point, Ga.

Officer John Nolan and the team investigate the unexpected death of a suspect in police custody; Sgt. Grey and his wife, Luna, go to New York to visit their daughter, Dominique, only to realize she never made it home from the night before.

Detective Nyla Harper and James find themselves in the middle of a bank robbery which leads the entire team on a citywide manhunt; Tim and Lucy go on their first date.

The search for a missing boy leads the team into the middle of a dangerous drug war between two rival gangs.

Nolan and Celina must stand guard at a hospital after a dangerous prisoner needs surgery; Aaron, Lopez and Harper look into a string of robberies; Tim and Lucy consider how their secret relationship will affect their work; Lopez gets unexpected news.

In the midst of a heatwave and a citywide blackout, Nolan and Aaron follow increasingly large leads after they discover criminals hiding at the station; Chen makes an alarming discovery after being called to a scene with a pungent smell.

Officer John Nolan and Bailey search for a mystery gunman after a shooting hits a little too close to home; Aaron struggles to live within his means; Wesley suspects that a judge is taking bribes.

When a young boy disappears during a school field trip at the aquarium, Colter must navigate a volatile father's desperation to find his son.

After a stunning reveal, Angelo races against the clock to protect the ones he loves from The Ferryman's path of death and destruction.

Detective Nyla Harper and James find themselves in the middle of a bank robbery which leads the entire team on a citywide manhunt; Tim and Lucy go on their first date.

When a young boy disappears during a school field trip at the aquarium, Colter must navigate a volatile father's desperation to find his son.

After a stunning reveal, Angelo races against the clock to protect the ones he loves from The Ferryman's path of death and destruction.

In the midst of a heatwave and a citywide blackout, Nolan and Aaron follow increasingly large leads after they discover criminals hiding at the station; Chen makes an alarming discovery after being called to a scene with a pungent smell.

Officer John Nolan and Bailey search for a mystery gunman after a shooting hits a little too close to home; Aaron struggles to live within his means; Wesley suspects that a judge is taking bribes.

With help from the FBI, Lopez puts everything on the line to help Elijah Stone take down a gang leader in exchange for her safety; Nolan and Bailey must deal with the secrets and shady dealings his late mother left behind.

Officer John Nolan and the team investigate the unexpected death of a suspect in police custody; Sgt. Grey and his wife, Luna, go to New York to visit their daughter, Dominique, only to realize she never made it home from the night before.

Police discover a murdered teenage girl was involved in a love triangle.

Todd Kendhammer claims his wife was killed in a car accident; the forensic evidence doesn't back him up; when a new defense team, known for working on the Steve Avery case is hired, they bring in their own forensic experts who contradict the case.

When Leslie Neulander's death is declared accidental, forensic investigators sound the alarm that it was no accident.

Detectives from New York's SVU come to Chicago to help take down a pedophilia ring; Platt shows her respect for the police.

When Asher is killed while Antonio is on his security duty, Voight and Olinsky make sure he is covered; Halstead and Lindsay go undercover; Kot wants an answer from Lindsay.

Following a big heroin bust, Olinsky learns that the suspects are holding his wife hostage; Burgess and Roman get an assignment that pairs them with a K-9 officer: Roman's former partner (Spencer Grammer).

The intelligence team works to find those responsible for Burgess' wounds; a search of the house provides valuable information.

Lindsay calls on Voight and his unit for help with her first case on the federal task force; Burgess is relegated to desk duty.

Ruzek's father (Jack Coleman) is first on the scene of a double murder; Lindsay prepares for an undercover investigation in Bolivia; Roman and Burgess try to move forward.

Antonio and his sister talk to Elliot Gish about the person they think is responsible for the fire that killed Shay; Lindsay has second thoughts about the task force; Platt's new, sunny demeanor results in curiosity.

Detectives from New York's SVU come to Chicago to help take down a pedophilia ring; Platt shows her respect for the police.

When Asher is killed while Antonio is on his security duty, Voight and Olinsky make sure he is covered; Halstead and Lindsay go undercover; Kot wants an answer from Lindsay.

Following a big heroin bust, Olinsky learns that the suspects are holding his wife hostage; Burgess and Roman get an assignment that pairs them with a K-9 officer: Roman's former partner (Spencer Grammer).

Martin Best is a brilliant surgeon who abruptly leaves his illustrious career in Boston to become the general practitioner in a quaint East Coast fishing village where he spent summers as a child. Unfortunately, Martin's blunt and borderline rude bedside manner rubs the quirky, needy locals the wrong way, and he quickly alienates the town, even though he's all they've got. Although Martin can expertly address any medical ailment or mystery in this idiosyncratic town, he's really just desperate to be left the hell alone. Instead, he keeps getting dragged right smack into the middle of their personal chaos, feuds and fantasies. What the locals don't know is that Martin's terse demeanor masks a debilitating new phobia and deep-seated psychological issues that prevent him from experiencing true intimacy with anyone. But tenacity is the creed of everyone in their small village, and the people who live there may be exactly what the doctor ordered.

When a young boy disappears during a school field trip at the aquarium, Colter must navigate a volatile father's desperation to find his son.

After a stunning reveal, Angelo races against the clock to protect the ones he loves from The Ferryman's path of death and destruction.

In Austin, Texas, a lone gunman kills 25-year-old professional cyclist Moriah Wilson; and the execution-style murder tells investigators the hit was personal.

Martin Best is a brilliant surgeon who abruptly leaves his illustrious career in Boston to become the general practitioner in a quaint East Coast fishing village where he spent summers as a child. Unfortunately, Martin's blunt and borderline rude bedside manner rubs the quirky, needy locals the wrong way, and he quickly alienates the town, even though he's all they've got. Although Martin can expertly address any medical ailment or mystery in this idiosyncratic town, he's really just desperate to be left the hell alone. Instead, he keeps getting dragged right smack into the middle of their personal chaos, feuds and fantasies. What the locals don't know is that Martin's terse demeanor masks a debilitating new phobia and deep-seated psychological issues that prevent him from experiencing true intimacy with anyone. But tenacity is the creed of everyone in their small village, and the people who live there may be exactly what the doctor ordered.

When Asher is killed while Antonio is on his security duty, Voight and Olinsky make sure he is covered; Halstead and Lindsay go undercover; Kot wants an answer from Lindsay.

Following a big heroin bust, Olinsky learns that the suspects are holding his wife hostage; Burgess and Roman get an assignment that pairs them with a K-9 officer: Roman's former partner (Spencer Grammer).

The intelligence team works to find those responsible for Burgess' wounds; a search of the house provides valuable information.

Lindsay calls on Voight and his unit for help with her first case on the federal task force; Burgess is relegated to desk duty.

Ruzek's father (Jack Coleman) is first on the scene of a double murder; Lindsay prepares for an undercover investigation in Bolivia; Roman and Burgess try to move forward.

Antonio and his sister talk to Elliot Gish about the person they think is responsible for the fire that killed Shay; Lindsay has second thoughts about the task force; Platt's new, sunny demeanor results in curiosity.

A suitcase filled with unidentified human remains unlocks a missing person's case that has gone unsolved for years; the forensic analysis of a nearly-destroyed cellphone found in the suitcase reveals a mysterious selfie.

When Lanell Barsock is found murdered, it seems obvious to all that her boyfriend did it; when the forensic evidence comes in, investigators are astonished to learn they've arrested the wrong person.

Homicide investigators are convinced an apparent murder-suicide was staged but the experienced CSI on the scene disagrees; only the instincts of the cops, coupled with an outside forensic expert's opinion, convince authorities who the real killer is.

Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station, and problems quickly arise; Casey and Gallo hunt a missing piece of equipment; Brett and Foster find themselves at odds.

A pest control problem forces the 51 team to temporarily bunk with Firehouse 20; all under the same roof, Casey clashes with Capt. Delaney, while Foster, Kidd and Brett fear Capt. Leone has it out for them; Boden mulls a procedural overhaul.

A series of false alarms at a private school hinders 51's ability to respond to legitimate emergencies; Kidd asks for ideas to surprise Severide on his birthday; Cruz and Brett rent out their extra room but get more than they bargained for.

The surprising arrival of a new fire truck brings both joy and chaos to members of Firehouse 51; Boden and Severide are asked to make peace with an old foe for the greater good; Brett receives family news while Foster plans a party with friends.

A series of mysterious gas leaks has members of Firehouse 51 puzzled and spread thin; Brett's conflicted when her birth mother gets serious about finding her; Severide misunderstands his role as Cruz's best man; Mouch bites off more than he can chew.

A series of teen opioid overdoses sees Severide partner with Sean Roman, but he begins to suspect there's more to the story than his old friend is telling him; Casey tries to be there for Brett as she considers her birth mother's offer to meet.

Boden is on edge after starting a new fad diet; Casey and Severide disagree on a call; Brett's birth mother shares life-altering news; a familiar face has a proposition for Herrmann.

Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station, and problems quickly arise; Casey and Gallo hunt a missing piece of equipment; Brett and Foster find themselves at odds.

A pest control problem forces the 51 team to temporarily bunk with Firehouse 20; all under the same roof, Casey clashes with Capt. Delaney, while Foster, Kidd and Brett fear Capt. Leone has it out for them; Boden mulls a procedural overhaul.

A series of false alarms at a private school hinders 51's ability to respond to legitimate emergencies; Kidd asks for ideas to surprise Severide on his birthday; Cruz and Brett rent out their extra room but get more than they bargained for.

The surprising arrival of a new fire truck brings both joy and chaos to members of Firehouse 51; Boden and Severide are asked to make peace with an old foe for the greater good; Brett receives family news while Foster plans a party with friends.

A series of mysterious gas leaks has members of Firehouse 51 puzzled and spread thin; Brett's conflicted when her birth mother gets serious about finding her; Severide misunderstands his role as Cruz's best man; Mouch bites off more than he can chew.

A series of teen opioid overdoses sees Severide partner with Sean Roman, but he begins to suspect there's more to the story than his old friend is telling him; Casey tries to be there for Brett as she considers her birth mother's offer to meet.

Boden is on edge after starting a new fad diet; Casey and Severide disagree on a call; Brett's birth mother shares life-altering news; a familiar face has a proposition for Herrmann.

Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station, and problems quickly arise; Casey and Gallo hunt a missing piece of equipment; Brett and Foster find themselves at odds.

A pest control problem forces the 51 team to temporarily bunk with Firehouse 20; all under the same roof, Casey clashes with Capt. Delaney, while Foster, Kidd and Brett fear Capt. Leone has it out for them; Boden mulls a procedural overhaul.

A series of false alarms at a private school hinders 51's ability to respond to legitimate emergencies; Kidd asks for ideas to surprise Severide on his birthday; Cruz and Brett rent out their extra room but get more than they bargained for.

The surprising arrival of a new fire truck brings both joy and chaos to members of Firehouse 51; Boden and Severide are asked to make peace with an old foe for the greater good; Brett receives family news while Foster plans a party with friends.

A series of mysterious gas leaks has members of Firehouse 51 puzzled and spread thin; Brett's conflicted when her birth mother gets serious about finding her; Severide misunderstands his role as Cruz's best man; Mouch bites off more than he can chew.

A suitcase filled with unidentified human remains unlocks a missing person's case that has gone unsolved for years; the forensic analysis of a nearly-destroyed cellphone found in the suitcase reveals a mysterious selfie.

When Lanell Barsock is found murdered, it seems obvious to all that her boyfriend did it; when the forensic evidence comes in, investigators are astonished to learn they've arrested the wrong person.

The building of a backyard shed destroys a yearslong, close relationship between two neighbors and ignites a vicious conflict that sees property destroyed, pets killed, and finally two people shot to death in cold blood.

Police struggle to identify the body of a woman found floating in the Indian River; with only a piece of nautical rope, a strip of duct tape and some plastic bags to go on, they use every forensic tool they have to catch her killer.

Team One discovers two young con artists who have ties to Pete Joris at a bank robbery.

The building of a backyard shed destroys a yearslong, close relationship between two neighbors and ignites a vicious conflict that sees property destroyed, pets killed, and finally two people shot to death in cold blood.

Police struggle to identify the body of a woman found floating in the Indian River; with only a piece of nautical rope, a strip of duct tape and some plastic bags to go on, they use every forensic tool they have to catch her killer.

Team One discovers two young con artists who have ties to Pete Joris at a bank robbery.

The building of a backyard shed destroys a yearslong, close relationship between two neighbors and ignites a vicious conflict that sees property destroyed, pets killed, and finally two people shot to death in cold blood.

Team One discovers two young con artists who have ties to Pete Joris at a bank robbery.

Police struggle to identify the body of a woman found floating in the Indian River; with only a piece of nautical rope, a strip of duct tape and some plastic bags to go on, they use every forensic tool they have to catch her killer.

Things get personal for Casey and Gallo in the aftermath of a suburban house fire involving a mother and her young son; Herrmann campaigns for more respect; Kidd has an idea for giving back to her community.

Severide teams up with Seager and the OFI when a motel structure fire turns suspicious; Firehouse 51 members become amateur sleuths following a Reddit post involving one of their own; Brett continues to get invested in her birth mother, Julie.

Tension builds when a group of rabble-rousers attempts to lock down the firehouse; Brett is faced with a monumental decision; Cruz readies himself for a big day; Gallo and Ritter attempt to launch Firehouse 51 into the social media age.

When one of 51's own gets injured on a call, Severide becomes obsessed with helping out; Foster contemplates a big decision; Kidd is concerned for one of her high school trainees.

As Firehouse 51 welcomes a new member to the team, whose presence could provide some complications, Brett's leadership shines during a scary call; Boden sees great potential in Kidd and proposes an idea that could have lasting repercussions.