Halstead and Hammer get stuck in the middle of a marital face-off; Blake's entire surgical team mysteriously collapses during a liver transplant; Charles encourages Choi to reconcile with his father.

Scott and Archer diagnose a pregnant woman with a serious infection; Maggie receives shocking news; Halstead and Charles question an elderly patient's Alzheimer's diagnosis; in an effort to help a patient, Marcel takes a risk.

Goodwin assigns Med's new compliance officer to a patient with a long-hauler COVID condition; Maggie helps Halstead treat a patient who's been in an iron lung for 60 years; Hammer learns hard truths about her mother.

Scott's loyalty to Med and the police department is challenged; the annual random drug testing puts a doctor's career in jeopardy; Choi tries a risky old-school method on a patient; Halstead helps Hammer search for her mother.

Friendly neighbors on a peaceful street have their lives disrupted when a developer moves in and builds houses nearby; tempers flare over the access road he uses for heavy equipment, which fuels escalating threats and confrontations.

The largest police investigation of the decade lasted 23 days to catch a sniper who terrorized Washington, D. C. residents.

The team tries to end a standoff at a hospital between gang members and a man trying to protect his injured brother.

Friendly neighbors on a peaceful street have their lives disrupted when a developer moves in and builds houses nearby; tempers flare over the access road he uses for heavy equipment, which fuels escalating threats and confrontations.

The largest police investigation of the decade lasted 23 days to catch a sniper who terrorized Washington, D. C. residents.

The team tries to end a standoff at a hospital between gang members and a man trying to protect his injured brother.

Friendly neighbors on a peaceful street have their lives disrupted when a developer moves in and builds houses nearby; tempers flare over the access road he uses for heavy equipment, which fuels escalating threats and confrontations.

The team tries to end a standoff at a hospital between gang members and a man trying to protect his injured brother.

The largest police investigation of the decade lasted 23 days to catch a sniper who terrorized Washington, D. C. residents.

A stunt driver is caught in a hairy situation; a teenage social influencer is bugging out; the city is on high alert after two mail bombs go off; Eddie's family comes to town; Buck faces a life-or-death situation.

A teenager speeds out of control on the freeway; a routine traffic stop uncovers a shocking kidnapping; Buck struggles with his recovery.

A massive tsunami hits the Santa Monica Pier, jeopardizing the lives of both Buck and Christopher.

A massive tsunami hits the Santa Monica Pier; Buck fears the worst when Christopher goes missing.

The team races to save workers in a high-rise during a fire drill, car accident victims, and siblings fighting over a family heirloom; Buck gives Bobby surprising news; Eddie helps Christopher deal with the trauma caused by the tsunami.

The 118 races to help protesters at a slaughterhouse and a wife who finds herself trapped in a "rage room" with her husband's mistress; Athena takes action after Michael, May and Harry experience a traumatic traffic stop.

The rift between Cal and Maggie widens as Liam decides he's staying at the Crossing.

Athena and the 118 respond to bizarre emergency calls on Halloween, including a flock of crows terrorizing a field trip, an office employee having a close encounter with an eight-limbed creature and a ghost-like girl wandering a neighborhood.

A teenager speeds out of control on the freeway; a routine traffic stop uncovers a shocking kidnapping; Buck struggles with his recovery.

A massive tsunami hits the Santa Monica Pier, jeopardizing the lives of both Buck and Christopher.

A massive tsunami hits the Santa Monica Pier; Buck fears the worst when Christopher goes missing.

The team races to save workers in a high-rise during a fire drill, car accident victims, and siblings fighting over a family heirloom; Buck gives Bobby surprising news; Eddie helps Christopher deal with the trauma caused by the tsunami.

The 118 races to help protesters at a slaughterhouse and a wife who finds herself trapped in a "rage room" with her husband's mistress; Athena takes action after Michael, May and Harry experience a traumatic traffic stop.

The rift between Cal and Maggie widens as Liam decides he's staying at the Crossing.

A stunt driver is caught in a hairy situation; a teenage social influencer is bugging out; the city is on high alert after two mail bombs go off; Eddie's family comes to town; Buck faces a life-or-death situation.

A mother and daughter upscale their lives when they move into a beautiful suburban community; their next door neighbor takes an instant dislike to them and tensions rise until a vicious murder is caught on home video.

When an unidentified burned corpse is found in a field, state-of-the-art forensics is turned to.

While broadcasting live, a notorious radio-show host holds a prominent politician hostage.

A mother and daughter upscale their lives when they move into a beautiful suburban community; their next door neighbor takes an instant dislike to them and tensions rise until a vicious murder is caught on home video.

When an unidentified burned corpse is found in a field, state-of-the-art forensics is turned to.

While broadcasting live, a notorious radio-show host holds a prominent politician hostage.

A mother and daughter upscale their lives when they move into a beautiful suburban community; their next door neighbor takes an instant dislike to them and tensions rise until a vicious murder is caught on home video.

While broadcasting live, a notorious radio-show host holds a prominent politician hostage.

When an unidentified burned corpse is found in a field, state-of-the-art forensics is turned to.

Scott suspects his patient may be a drug dealer; Halstead must decide how to spend his whistleblower settlement; Charles and Taylor help a patient who believes she's infested with parasites; Marcel and Blake are paired with an arrogant surgeon.

Halstead helps a patient with long-haul COVID-19 symptoms; Taylor reflects on her dating life when she learns that a patient's daughter is having an arranged marriage; a new family is born out of tragedy.

Rival gangs bring their war to Med; Halstead and Charles work with a teenage brain cancer patient who's refusing treatment; tensions run high in the OR when a patient's transplanted uterus fails.

Archer and Asher clash over a patient with close ties to Goodwin; after a patient is shot during a home invasion, Scott and Marcel help with the investigation; Maggie and Halstead work to protect a patient who is in the country illegally.

Halstead and Asher work to save a surrogate's baby; Charles cares for a patient on a hunger strike; Choi and Archer help a patient with ties to Choi's late father; Scott and Maggie are stumped by a drunken patient who claims to be sober.

Scott helps the daughter of a mob boss; a grandmother comes to Med desperate to save her grandson; Choi struggles with some shocking news about his father; Halstead and Taylor care for Maggie's high school classmate.

Twenty-one-year-old Kanako Ohyama is found dead in New Orleans; police use her journal and photos to uncover the truth behind her murder.

In 2017, Tynesha Stewart vanishes on spring break; a missed concert sparks a search that uncovers a chilling murder and a key suspect.

Halstead helps a patient with long-haul COVID-19 symptoms; Taylor reflects on her dating life when she learns that a patient's daughter is having an arranged marriage; a new family is born out of tragedy.

Rival gangs bring their war to Med; Halstead and Charles work with a teenage brain cancer patient who's refusing treatment; tensions run high in the OR when a patient's transplanted uterus fails.

Archer and Asher clash over a patient with close ties to Goodwin; after a patient is shot during a home invasion, Scott and Marcel help with the investigation; Maggie and Halstead work to protect a patient who is in the country illegally.

Halstead and Asher work to save a surrogate's baby; Charles cares for a patient on a hunger strike; Choi and Archer help a patient with ties to Choi's late father; Scott and Maggie are stumped by a drunken patient who claims to be sober.

Scott helps the daughter of a mob boss; a grandmother comes to Med desperate to save her grandson; Choi struggles with some shocking news about his father; Halstead and Taylor care for Maggie's high school classmate.

Twenty-one-year-old Kanako Ohyama is found dead in New Orleans; police use her journal and photos to uncover the truth behind her murder.

In 2017, Tynesha Stewart vanishes on spring break; a missed concert sparks a search that uncovers a chilling murder and a key suspect.

A beautiful hamlet is home to a resident regarded as a pillar of the community; in reality, he is a twisted criminal bent on ruling the kingdom he has built and all who live in it; when his world crumbles, his retribution is violent beyond belief.

A serial rapist stalks elderly women for nearly 20 years before escalating to murder.

A wave of terrorist bombs shuts down the city; a member of the team makes a sacrifice.

A beautiful hamlet is home to a resident regarded as a pillar of the community; in reality, he is a twisted criminal bent on ruling the kingdom he has built and all who live in it; when his world crumbles, his retribution is violent beyond belief.

A serial rapist stalks elderly women for nearly 20 years before escalating to murder.

A wave of terrorist bombs shuts down the city; a member of the team makes a sacrifice.

A beautiful hamlet is home to a resident regarded as a pillar of the community; in reality, he is a twisted criminal bent on ruling the kingdom he has built and all who live in it; when his world crumbles, his retribution is violent beyond belief.

A wave of terrorist bombs shuts down the city; a member of the team makes a sacrifice.

A serial rapist stalks elderly women for nearly 20 years before escalating to murder.

A deadly threat strikes close to home, pulling Lena, Danny and the team into an intense investigation; Mae faces a political and personal reckoning, prompting a revelation that pushes Lena toward a life-changing decision.

Officer Bradford's wife is found shot but alive, and he vows to track down the man responsible; Officer Nolan must protect his home and the truth after a home invasion attack.

Officer Nolan and Sgt. Grey are paired up for the day on patrol; Officer Chen is paired up with Capt. Andersen, and Officer Bradford tells Chen to protect her at all costs.

An unscheduled visit by the Vice President of the United States puts the station on high alert; the Secret Service tasks Nolan and Bishop with checking out a possible threat while the rest of the team tries to keep the streets safe for his visit.

The team is on high alert during the most dangerous day of the year, Valentine's Day; officer Nolan invites everyone over for a party now that he is single.

A deadly threat strikes close to home, pulling Lena, Danny and the team into an intense investigation; Mae faces a political and personal reckoning, prompting a revelation that pushes Lena toward a life-changing decision.

Colter and Russell unite in a personal mission to uncover their father's mysterious work.

The rookies are really put to the test when they are forced to make all decisions while on patrol; officer Nolan tries to prove he has been progressing faster than the other rookies to justify his desire of becoming a detective within five years.

Officer Bradford's wife is found shot but alive, and he vows to track down the man responsible; Officer Nolan must protect his home and the truth after a home invasion attack.

Colter and Russell unite in a personal mission to uncover their father's mysterious work.

An unscheduled visit by the Vice President of the United States puts the station on high alert; the Secret Service tasks Nolan and Bishop with checking out a possible threat while the rest of the team tries to keep the streets safe for his visit.

The team is on high alert during the most dangerous day of the year, Valentine's Day; officer Nolan invites everyone over for a party now that he is single.

When a prison bus crashes, some inmates face severe injuries while others seek an opportunity to flee; in the wake of the accident, officer Nolan tries to impress an FBI hostage negotiator while tracking down an escaped convict.

A large sum of money used in a drug bust goes missing; the rookies become the prime suspects, as they had previously discussed what they would do with the money.

Officer Nolan gets a lesson in respect after his arrest of a gang member leads to a free-for-all on his life; officer Chen and Bradford pull over Mario Lopez, who thinks he can talk his way out of a traffic violation.

A sniper targeting abortion doctors turns murderous and a DNA "needle in a haystack" identifies the gunman.

A small town encounters satanic rituals and a savage killer.

Top criminal investigators, forensic scientists and behavioral analysts track three serial killers.

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.

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.

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 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 undercover 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 undercover 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.

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.

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.

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 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 undercover as a guard to investigate the center from the inside.

Colter and Russell unite in a personal mission to uncover their father's mysterious work.

Twenty-one-year-old Kanako Ohyama is found dead in New Orleans; police use her journal and photos to uncover the truth behind her murder.

In 2017, Tynesha Stewart vanishes on spring break; a missed concert sparks a search that uncovers a chilling murder and a key suspect.

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.

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.

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 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 undercover 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 undercover 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.

Knowledge of insects by a forensic entomologist leads police to the killer of a wife and mother of two.

A serial killer in Spokane, Wash. murders prostitutes and leaves a bag with a smiley face on the victim's head.

Officials look to state-of-the-art DNA analysis to help capture a serial killer in the Louisiana State University area of Baton Rouge.

Casey struggles with his new responsibilities; Severide dreads the arsonist's next attack; Mouch starts campaigning; Dawson and Shay decide they need to get out more.

Severide tries to prove his suspicions about the arsonist's identity; Casey gets accustomed to his new lifestyle; Dawson goes on a date with a regular from the bar.

Severide wants to implicate the serial arsonist; Dawson and Shay face the unexpected on a routine call; suspicions indicate Clarke is the mole; Mouch campaigns for union president.

McLeod pushes Boden toward an early retirement and chooses a potential replacement; all make known their disdain for the mole; Shay enjoys a full social life.

Severide comes across a boy in need of help while out on a jog; Boden and McLeod clash over the future of the firehouse; Mouch and Greg Sullivan debate on Otis' podcast.

The firehouse crew goes to the scene of a railroad accident; Boden must make a big decision about his future; Severide learns more about the woman he saw with his father; Shay and Dawson continue to butt heads.

The shooting of a child in their neighborhood forces Cruz and his brother to think about the gang; Isabella gets Mills to dress up for a gala; Casey feels sad he will be seeing Dawson less; Shay gets in deeper with Devon.

Casey struggles with his new responsibilities; Severide dreads the arsonist's next attack; Mouch starts campaigning; Dawson and Shay decide they need to get out more.

Severide tries to prove his suspicions about the arsonist's identity; Casey gets accustomed to his new lifestyle; Dawson goes on a date with a regular from the bar.

Severide wants to implicate the serial arsonist; Dawson and Shay face the unexpected on a routine call; suspicions indicate Clarke is the mole; Mouch campaigns for union president.

McLeod pushes Boden toward an early retirement and chooses a potential replacement; all make known their disdain for the mole; Shay enjoys a full social life.

Severide comes across a boy in need of help while out on a jog; Boden and McLeod clash over the future of the firehouse; Mouch and Greg Sullivan debate on Otis' podcast.

The firehouse crew goes to the scene of a railroad accident; Boden must make a big decision about his future; Severide learns more about the woman he saw with his father; Shay and Dawson continue to butt heads.

The shooting of a child in their neighborhood forces Cruz and his brother to think about the gang; Isabella gets Mills to dress up for a gala; Casey feels sad he will be seeing Dawson less; Shay gets in deeper with Devon.

Casey struggles with his new responsibilities; Severide dreads the arsonist's next attack; Mouch starts campaigning; Dawson and Shay decide they need to get out more.

Severide tries to prove his suspicions about the arsonist's identity; Casey gets accustomed to his new lifestyle; Dawson goes on a date with a regular from the bar.

Severide wants to implicate the serial arsonist; Dawson and Shay face the unexpected on a routine call; suspicions indicate Clarke is the mole; Mouch campaigns for union president.

McLeod pushes Boden toward an early retirement and chooses a potential replacement; all make known their disdain for the mole; Shay enjoys a full social life.

Severide comes across a boy in need of help while out on a jog; Boden and McLeod clash over the future of the firehouse; Mouch and Greg Sullivan debate on Otis' podcast.

Knowledge of insects by a forensic entomologist leads police to the killer of a wife and mother of two.

A serial killer in Spokane, Wash. murders prostitutes and leaves a bag with a smiley face on the victim's head.

A family moves one house over and closer to neighbors they've been friendly with for years; however, things go sour when they start renovations; the noise and waste ignite a vicious feud, ending in a frenzy of bullets and bloodshed.

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

A delusional man kidnaps a waitress who resembles his missing daughter; a woman joins the SRU team after the death of one of the unit's members.

A family moves one house over and closer to neighbors they've been friendly with for years; however, things go sour when they start renovations; the noise and waste ignite a vicious feud, ending in a frenzy of bullets and bloodshed.

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

A delusional man kidnaps a waitress who resembles his missing daughter; a woman joins the SRU team after the death of one of the unit's members.

A family moves one house over and closer to neighbors they've been friendly with for years; however, things go sour when they start renovations; the noise and waste ignite a vicious feud, ending in a frenzy of bullets and bloodshed.

A delusional man kidnaps a waitress who resembles his missing daughter; a woman joins the SRU team after the death of one of the unit's members.

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

Boden tries to keep the firehouse from closing; the romance between Dawson and Casey grows; Cruz worries about his brother's safety; Severide and Katie make up for lost time.

Chief Boden leads the fight to keep the firehouse open; an emergency call to an apartment structure puts the squad in harm's way; Dawson receives life-changing news.

Casey returns to work after a brush with death; Shay's new partner is friendly to everyone but her; Dawson begins training; Severide prepares for his instructor duties; Clarke refuses to talk to the police about the murder.

Casey tries to convince everyone he is healthy; Shay avoids the lawyer who wants to talk about Daryl's suicide; Otis and Katie grow closer; Boden helps a woman with a negligent landlord.

A drunken driver takes out a transformer, leaving the entire neighborhood without power on a frigid night; Casey continues to lie about his condition.

Severide must leave Lindsay and the Intelligence Unit to find Katie; Blackhawks players Brent Seabrook and Duncan Keith give Shay a tip; Casey gets more information about his head injuries; Dawson works to pass the physical test.

Drugs, drink and simmering emotions explode into multiple showdowns and a violent assault at the illegal rave; Kelly is rushed to hospital.

Without the St. Clair, Bumpy's forced to bring an old enemy back to Harlem to take care of Joe Colombo; Omar gets the name of one of Malcolm's shooters and the Panthers investigate; Mayme's invited to Truman Capote's Black & White Ball.

An attack on Bumpy's family forces him to team up with unlikely allies to retaliate against Joe Colombo; Margaret stays with Elise and the Panthers and helps Jerome; Pino betrays Stella; Colombo plans a Civil Rights rally in Central Park.

Casey returns to work after a brush with death; Shay's new partner is friendly to everyone but her; Dawson begins training; Severide prepares for his instructor duties; Clarke refuses to talk to the police about the murder.

Casey tries to convince everyone he is healthy; Shay avoids the lawyer who wants to talk about Daryl's suicide; Otis and Katie grow closer; Boden helps a woman with a negligent landlord.

Drugs, drink and simmering emotions explode into multiple showdowns and a violent assault at the illegal rave; Kelly is rushed to hospital.

Without the St. Clair, Bumpy's forced to bring an old enemy back to Harlem to take care of Joe Colombo; Omar gets the name of one of Malcolm's shooters and the Panthers investigate; Mayme's invited to Truman Capote's Black & White Ball.

An attack on Bumpy's family forces him to team up with unlikely allies to retaliate against Joe Colombo; Margaret stays with Elise and the Panthers and helps Jerome; Pino betrays Stella; Colombo plans a Civil Rights rally in Central Park.

A gospel radio host and her son get into a minor street parking dispute with their next-door neighbor; yet the neighbor's anger is anything but minor, and soon, the whole community bears witness to his unleashed wrath.

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

Two civilians are trapped inside a prison when a riot breaks out.

A gospel radio host and her son get into a minor street parking dispute with their next-door neighbor; yet the neighbor's anger is anything but minor, and soon, the whole community bears witness to his unleashed wrath.

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

Two civilians are trapped inside a prison when a riot breaks out.

A gospel radio host and her son get into a minor street parking dispute with their next-door neighbor; yet the neighbor's anger is anything but minor, and soon, the whole community bears witness to his unleashed wrath.

Two civilians are trapped inside a prison when a riot breaks out.

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

Scott and Choi treat a patient who is shot during a drug raid; Charles and Taylor work together to properly diagnose a motivational speaker; Halstead and Asher turn to Marcel for help with a pregnant patient.

Halstead and Asher clash over a patient in need of a kidney transplant; Marcel faces a tough decision when Blake is in surgery; Choi and Archer treat the son of Med's general counsel; Med's family grows.

In the aftermath of Halstead's apartment fire, Marcel, Choi and Archer work together to try to save the survivors; Charles and Med's new fellow, Cuevas, helps a paranoid patient; Scott makes a life-changing decision.

Supply chain disruptions dramatically impact Med, causing Marcel to clash with other doctors; Maggie reveals something to Ben; Choi and Archer help a patient with ALS.

Charles and Cuevas clash over the treatment of a paranoid patient; Choi treats a pregnant patient from Asher's past; Marcel and Taylor help a man who needs a risky neurosurgery.

When a subway train goes off the tracks, Marcel volunteers to help the victims; Taylor and Halstead must decide if they're willing to risk their jobs to save a patient; Asher and Archer clash over a pregnant patient.

The effects of the supply chain shortages continue to impact the ED when Taylor's drug dealer reappears; one of the victims of the recent train crash needs a transplant, forcing Marcel to improvise; Charles and Cuevas help a patient with amnesia.

Scott and Choi treat a patient who is shot during a drug raid; Charles and Taylor work together to properly diagnose a motivational speaker; Halstead and Asher turn to Marcel for help with a pregnant patient.

Halstead and Asher clash over a patient in need of a kidney transplant; Marcel faces a tough decision when Blake is in surgery; Choi and Archer treat the son of Med's general counsel; Med's family grows.

In the aftermath of Halstead's apartment fire, Marcel, Choi and Archer work together to try to save the survivors; Charles and Med's new fellow, Cuevas, helps a paranoid patient; Scott makes a life-changing decision.

Supply chain disruptions dramatically impact Med, causing Marcel to clash with other doctors; Maggie reveals something to Ben; Choi and Archer help a patient with ALS.

Charles and Cuevas clash over the treatment of a paranoid patient; Choi treats a pregnant patient from Asher's past; Marcel and Taylor help a man who needs a risky neurosurgery.

When a subway train goes off the tracks, Marcel volunteers to help the victims; Taylor and Halstead must decide if they're willing to risk their jobs to save a patient; Asher and Archer clash over a pregnant patient.

The effects of the supply chain shortages continue to impact the ED when Taylor's drug dealer reappears; one of the victims of the recent train crash needs a transplant, forcing Marcel to improvise; Charles and Cuevas help a patient with amnesia.

Scott and Choi treat a patient who is shot during a drug raid; Charles and Taylor work together to properly diagnose a motivational speaker; Halstead and Asher turn to Marcel for help with a pregnant patient.

When a single man buys a home in a rural community, he becomes fast friends with his neighbor until a minor parking issue sets them at odds; police are soon summoned for everything from horse manure to death threats.

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

A woman kidnaps her two children to keep her husband from getting custody.

When a single man buys a home in a rural community, he becomes fast friends with his neighbor until a minor parking issue sets them at odds; police are soon summoned for everything from horse manure to death threats.

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

A woman kidnaps her two children to keep her husband from getting custody.

When a single man buys a home in a rural community, he becomes fast friends with his neighbor until a minor parking issue sets them at odds; police are soon summoned for everything from horse manure to death threats.

A woman kidnaps her two children to keep her husband from getting custody.

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

When a murder weapon from a case close to Athena in the early '90s resurfaces, flashbacks to 1989 show how Athena joined the LAPD and became the police officer she is today.

A skating mishap at an ice show; an accident involving a self-driving car; a fulfillment warehouse robot goes rogue; Eddie's after-hours fight club gets out of control; Hen struggles in her relationship with Karen.

The 118 responds to debris from a meteor shower crashing into an apartment building and a deadly fire caused by a hazardous waste truck crash; Hen struggles with guilt over her ambulance accident; Bobby introduces Eddie to an old friend.

Holiday-themed incidents include a shopper pushed over the edge, a woman who is literally having a "Blue Christmas" and a luggage handler accident on a tarmac; Maddie revisits her past to embrace her future; Bobby receives shocking news.

The 118 responds to a skydiving trip gone wrong; a bank rep is injured in a home repossession; a lovestruck assistant's lunch run ends in disaster; Athena and the family come to terms with Michael's difficult health decision.

The 118 responds to a viral stunt gone haywire, a disaster at a couple's fishing trip and an epic first date fail; Athena investigates a woman who doesn't remember being shot in the head; Eddie must have a difficult conversation with Christopher.

A casual outing takes a perilous turn after Maggie agrees to let Liam try and cheer her up.

Accidents happen at a bowling alley and a home renovation; Athena pursues a car thief; Bobby and Michael take Harry camping; Chimney and Maddie rush into action when their romantic dinner date takes a wild turn.

A skating mishap at an ice show; an accident involving a self-driving car; a fulfillment warehouse robot goes rogue; Eddie's after-hours fight club gets out of control; Hen struggles in her relationship with Karen.

The 118 responds to debris from a meteor shower crashing into an apartment building and a deadly fire caused by a hazardous waste truck crash; Hen struggles with guilt over her ambulance accident; Bobby introduces Eddie to an old friend.

Holiday-themed incidents include a shopper pushed over the edge, a woman who is literally having a "Blue Christmas" and a luggage handler accident on a tarmac; Maddie revisits her past to embrace her future; Bobby receives shocking news.

The 118 responds to a skydiving trip gone wrong; a bank rep is injured in a home repossession; a lovestruck assistant's lunch run ends in disaster; Athena and the family come to terms with Michael's difficult health decision.

The 118 responds to a viral stunt gone haywire, a disaster at a couple's fishing trip and an epic first date fail; Athena investigates a woman who doesn't remember being shot in the head; Eddie must have a difficult conversation with Christopher.

A casual outing takes a perilous turn after Maggie agrees to let Liam try and cheer her up.

When a murder weapon from a case close to Athena in the early '90s resurfaces, flashbacks to 1989 show how Athena joined the LAPD and became the police officer she is today.

When a large and boisterous family moves to a quiet street, the neighbors directly across from them get into immediate conflict over all the noise; soon the dispute consumes everyone and is only settled with the deadly crack of a baseball bat.

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

The SRU team is called in when a woman takes hostages at a gas station.

When a large and boisterous family moves to a quiet street, the neighbors directly across from them get into immediate conflict over all the noise; soon the dispute consumes everyone and is only settled with the deadly crack of a baseball bat.

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

The SRU team is called in when a woman takes hostages at a gas station.

When a large and boisterous family moves to a quiet street, the neighbors directly across from them get into immediate conflict over all the noise; soon the dispute consumes everyone and is only settled with the deadly crack of a baseball bat.

The SRU team is called in when a woman takes hostages at a gas station.

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

Marcel adjusts to his newfound fame when he helps Halstead treat a local restaurant owner; Choi, Charles and Goodwin aid a new mother who is worried about hurting her baby; Maggie and Taylor clash with a patient who is eager to get back to work.

Med runs out of scrubs, forcing the staff to improvise; the life of Archer's son is in danger; Marcel and Charles help a kidney transplant patient experiencing psychosis; Asher and Halstead grow closer.

Halstead and Marcel facilitate a trans-organ exchange; Asher and Cuevas help a sexual assault survivor; Choi and Archer treat a patient whose case could expose a fraudulent doctor; Grant and Maggie take a trip down memory lane.

Halstead relies on Marcel and Med's newly donated OR 2.0 to save his patient; Charles helps an elderly, confused patient who's mourning the loss of his high school sweetheart; as their wedding day approaches, Choi and April run into some roadblocks.

Charles and Cuevas help an elderly patient and her developmentally disabled grandson; Halstead treats a swimmer with a heart condition; Marcel considers using the OR 2.0 for surgery; Asher and Lieu search for a pregnant woman lost in the woods.

Marcel and Charles treat Lieu's gym buddy; Maggie and Halstead help a robbery-homicide suspect; Asher and Archer use Med's new opiate abuse AI program.

In March 1989, pre-med student Mark Kilroy vanishes during spring break; two months later, he is found to be a victim of ritual sacrifice in Mexico.

An 18-year-old Jarret Clark doesn't return home from a camping trip with friends; Wahoo Bay campground in Oklahoma offers the spring break crowd both beauty and privacy, which makes finding reliable witnesses difficult and his parents don't believe the story the other campers are telling.

Med runs out of scrubs, forcing the staff to improvise; the life of Archer's son is in danger; Marcel and Charles help a kidney transplant patient experiencing psychosis; Asher and Halstead grow closer.

Halstead and Marcel facilitate a trans-organ exchange; Asher and Cuevas help a sexual assault survivor; Choi and Archer treat a patient whose case could expose a fraudulent doctor; Grant and Maggie take a trip down memory lane.

Halstead relies on Marcel and Med's newly donated OR 2.0 to save his patient; Charles helps an elderly, confused patient who's mourning the loss of his high school sweetheart; as their wedding day approaches, Choi and April run into some roadblocks.

Charles and Cuevas help an elderly patient and her developmentally disabled grandson; Halstead treats a swimmer with a heart condition; Marcel considers using the OR 2.0 for surgery; Asher and Lieu search for a pregnant woman lost in the woods.

Marcel and Charles treat Lieu's gym buddy; Maggie and Halstead help a robbery-homicide suspect; Asher and Archer use Med's new opiate abuse AI program.

In March 1989, pre-med student Mark Kilroy vanishes during spring break; two months later, he is found to be a victim of ritual sacrifice in Mexico.

An 18-year-old Jarret Clark doesn't return home from a camping trip with friends; Wahoo Bay campground in Oklahoma offers the spring break crowd both beauty and privacy, which makes finding reliable witnesses difficult and his parents don't believe the story the other campers are telling.

The story of two families whose initially warm welcome curdles into something far more sinister.

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.

Meth dealers take Parker hostage when they mistake him for somebody else.

The story of two families whose initially warm welcome curdles into something far more sinister.

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.

Meth dealers take Parker hostage when they mistake him for somebody else.

The story of two families whose initially warm welcome curdles into something far more sinister.

Meth dealers take Parker hostage when they mistake him for somebody else.

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.

An investigation collides with pivotal personal and professional decisions; as the D.A. election draws closer, shifting dynamics and an unexpected incident heighten the urgency and raise questions for everyone involved.

A massive earthquake rocks the city and throws everything into chaos; Russo recommends Officer Nolan for a protective detail of Brad Hayes, a man whose dealings have put a target on his head.

When a cop is arrested by Internal Affairs for lying on the witness stand, it leads to the release of three felons whose cases he worked on; Officer Nolan finds out he is being sued by a man who claims he used excessive force which led to an injury.

Sgt. Gray informs the rookies that they must track down a specific set of crimes in a 48-hour period to qualify for their final exam; Nolan and Bishop answer a silent alarm call at will.i.am's house.

As the rookies prepare for a big exam to see who moves on to the next stage of training, Nolan and Bishop are called to the scene of a murder and learn that the victim may be tied to a potential terrorist attack on the city of Los Angeles.