Members of the 118 attempt to rescue a wellness retreat guru after his followers turn on him; an emergency call at an upscale hair salon; Maddie contemplates returning to work, Eddie and May make decisions about their future.

When a blimp suffers mechanical failure and its engine catches fire, Athena and the 118 must rescue victims both inside and outside a packed sports stadium; Bobby and Athena drop off May on her first day of college and discuss honeymoon plans.

The 118 race to the rescue when a structure collapses at a convention; Athena's father suffers a stroke; Hen stretches herself too thin with test prep and her new responsibilities at the 118; Maddie tries to help new recruit get his bearings.

While in Florida caring for her ailing father, Athena and Bobby investigate the disappearance of her childhood friend from 45 years ago.

The 118 races to the rescue when a birdwatcher is trapped under a tree; Chimney is in for a wild ride when he tends to a drunken driver; Maddie helps a mother and her young daughter when an abusive father shows up at the their house.

Athena investigates when the same house is hit with two home invasion 911 calls within hours of each other; the 118 race to the rescue when a man is trapped in an attic; Hen asks for a second chance with her medical school professor.

After a mysterious death, Hen and Chimney put their lives in danger when they suspect that someone is playing God to make themselves look like a hero; Eddie visits Texas, where he attempts to reconcile with his father.

Members of the 118 attempt to rescue a wellness retreat guru after his followers turn on him; an emergency call at an upscale hair salon; Maddie contemplates returning to work, Eddie and May make decisions about their future.

When a blimp suffers mechanical failure and its engine catches fire, Athena and the 118 must rescue victims both inside and outside a packed sports stadium; Bobby and Athena drop off May on her first day of college and discuss honeymoon plans.

The 118 race to the rescue when a structure collapses at a convention; Athena's father suffers a stroke; Hen stretches herself too thin with test prep and her new responsibilities at the 118; Maddie tries to help new recruit get his bearings.

While in Florida caring for her ailing father, Athena and Bobby investigate the disappearance of her childhood friend from 45 years ago.

The 118 races to the rescue when a birdwatcher is trapped under a tree; Chimney is in for a wild ride when he tends to a drunken driver; Maddie helps a mother and her young daughter when an abusive father shows up at the their house.

Athena investigates when the same house is hit with two home invasion 911 calls within hours of each other; the 118 race to the rescue when a man is trapped in an attic; Hen asks for a second chance with her medical school professor.

After a mysterious death, Hen and Chimney put their lives in danger when they suspect that someone is playing God to make themselves look like a hero; Eddie visits Texas, where he attempts to reconcile with his father.

Members of the 118 attempt to rescue a wellness retreat guru after his followers turn on him; an emergency call at an upscale hair salon; Maddie contemplates returning to work, Eddie and May make decisions about their future.

When a blimp suffers mechanical failure and its engine catches fire, Athena and the 118 must rescue victims both inside and outside a packed sports stadium; Bobby and Athena drop off May on her first day of college and discuss honeymoon plans.

The 118 race to the rescue when a structure collapses at a convention; Athena's father suffers a stroke; Hen stretches herself too thin with test prep and her new responsibilities at the 118; Maddie tries to help new recruit get his bearings.

While in Florida caring for her ailing father, Athena and Bobby investigate the disappearance of her childhood friend from 45 years ago.

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

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

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

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.

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.

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

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

Seeking to make a fresh start in Las Vegas, a teacher and her son find themselves the targets of harassment and escalating intimidation by the woman who lives next door.

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

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

Seeking to make a fresh start in Las Vegas, a teacher and her son find themselves the targets of harassment and escalating intimidation by the woman who lives next door.

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

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

Seeking to make a fresh start in Las Vegas, a teacher and her son find themselves the targets of harassment and escalating intimidation by the woman who lives next door.

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

The Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty, live, love, work and play in a leafy Maryland suburb just outside of Washington D.C.

Boden tries to keep the firehouse from closing; the romance between Dawson and Casey grows; Cruz worries for 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; Blackhawk 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.

Elvira finds herself blackmailed by a teenager who saw her murder her first victim; Ward goes to AA; Hughie catches a break when he locates the rifle used to kill Maria Riedle.

Desperate to prove to herself that she is not a monster, Elvira pursues a drunk driver released from jail who mowed down a father and his daughter; Hughie hits a dead end with Maria's murder, but Emerson catches a break.

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.

Elvira finds herself blackmailed by a teenager who saw her murder her first victim; Ward goes to AA; Hughie catches a break when he locates the rifle used to kill Maria Riedle.

Desperate to prove to herself that she is not a monster, Elvira pursues a drunk driver released from jail who mowed down a father and his daughter; Hughie hits a dead end with Maria's murder, but Emerson catches a break.

Severide must leave Lindsay and the Intelligence Unit to find Katie; Blackhawk 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.

Severide becomes frustrated with the police; a girl is trapped in a donation bin; a fire breaks out in a 20-story building downtown.

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

In Vancouver, Wash., a young couple's neighbor violates the strict codes of community conduct in their housing development.

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

Someone hacks the computer system to show a crime in progress.

In Vancouver, Wash., a young couple's neighbor violates the strict codes of community conduct in their housing development.

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

Someone hacks the computer system to show a crime in progress.

In Vancouver, Wash., a young couple's neighbor violates the strict codes of community conduct in their housing development.

Someone hacks the computer system to show a crime in progress.

The Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty, live, love, work and play in a leafy Maryland suburb just outside of Washington D.C.

A husband has an unusual request after the death of his wife; Dr. Charles tries to deal with a patient who wants to cut off his own arm; Dr. Rhodes is concerned about possible complications for a boy who swallowed magnets.

Dr. Choi is tested when an erratic patient takes drastic measures; Dr. Manning questions the circumstances behind a young boy's broken wrist.

A patient refuses medication for her pain; Dr. Halstead treats a former high school classmate; a pregnant woman has a big reason not to deliver her child.

Doctors Rhodes and Downey are at odds over a patient's emergency heart surgery; Dr. Choi and a paramedic respond to a call from an injured hoarder; a woman is bitten by her own dog.

April and Dr. Halstead can't agree on how to treat a homeless alcoholic with a broken leg; Dr. Manning realizes her wedding ring has gone missing; two elderly women with the same symptoms are linked in a surprising way.

Dr. Rhodes cares for Dr. Downey while Goodwin deals with personal issues; April gets hit while tending to a disorderly patient; Dr. Manning's past starts to catch up with her.

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

A husband has an unusual request after the death of his wife; Dr. Charles tries to deal with a patient who wants to cut off his own arm; Dr. Rhodes is concerned about possible complications for a boy who swallowed magnets.

Dr. Choi is tested when an erratic patient takes drastic measures; Dr. Manning questions the circumstances behind a young boy's broken wrist.

A patient refuses medication for her pain; Dr. Halstead treats a former high school classmate; a pregnant woman has a big reason not to deliver her child.

Doctors Rhodes and Downey are at odds over a patient's emergency heart surgery; Dr. Choi and a paramedic respond to a call from an injured hoarder; a woman is bitten by her own dog.

April and Dr. Halstead can't agree on how to treat a homeless alcoholic with a broken leg; Dr. Manning realizes her wedding ring has gone missing; two elderly women with the same symptoms are linked in a surprising way.

Dr. Rhodes cares for Dr. Downey while Goodwin deals with personal issues; April gets hit while tending to a disorderly patient; Dr. Manning's past starts to catch up with her.

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

A husband has an unusual request after the death of his wife; Dr. Charles tries to deal with a patient who wants to cut off his own arm; Dr. Rhodes is concerned about possible complications for a boy who swallowed magnets.

In Oregon, a couple learns their new neighbor has a deadly past, then relations sour, tempers flare and blood is spilled.

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

A young nurse is abducted by a serial killer whose past could save her life.

In Oregon, a couple learns their new neighbor has a deadly past, then relations sour, tempers flare and blood is spilled.

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

A young nurse is abducted by a serial killer whose past could save her life.

In Oregon, a couple learns their new neighbor has a deadly past, then relations sour, tempers flare and blood is spilled.

A young nurse is abducted by a serial killer whose past could save her life.

The Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty, live, love, work and play in a leafy Maryland suburb just outside of Washington D.C.

Hen fears for Karen's life when an explosion rocks her science lab on the day she brings Denny to work with her.

Athena and the 118 race to the rescue when a fading movie star is plagued by a series of near-death experiences.

The 118 race to the rescue to a renaissance faire; an overbearing boss is poisoned; Athena fears for May's life when she encounters a disturbed young man; Uncle Buck babysits young Jee-Yun as Maddie and Chimney begin house-hunting.

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

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

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

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

Hen fears for Karen's life when an explosion rocks her science lab on the day she brings Denny to work with her.

Athena and the 118 race to the rescue when a fading movie star is plagued by a series of near-death experiences.

The 118 race to the rescue to a renaissance faire; an overbearing boss is poisoned; Athena fears for May's life when she encounters a disturbed young man; Uncle Buck babysits young Jee-Yun as Maddie and Chimney begin house-hunting.

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

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

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

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

Hen fears for Karen's life when an explosion rocks her science lab on the day she brings Denny to work with her.

In Euclid, Ohio, a teenage boy develops a crush on the girl next door but gets rebuffed, setting the stage for murder.

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

Team One confronts a man desperate to keep the promise he made to his deaf nephew by protecting the only place the boy has ever felt safe.

In Euclid, Ohio, a teenage boy develops a crush on the girl next door but gets rebuffed, setting the stage for murder.

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

Team One confronts a man desperate to keep the promise he made to his deaf nephew by protecting the only place the boy has ever felt safe.

In Euclid, Ohio, a teenage boy develops a crush on the girl next door but gets rebuffed, setting the stage for murder.

Team One confronts a man desperate to keep the promise he made to his deaf nephew by protecting the only place the boy has ever felt safe.

The Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty, live, love, work and play in a leafy Maryland suburb just outside of Washington D.C.

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

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

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

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

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

Goodwin reunites with her childhood sweetheart; Dr. Halstead gets lured into a concierge doctor app idea; Dr. Rhodes treats a woman with a heart infection against the advice of Dr. Charles; a former patient of Reese's reaches out for help.

The race heads to the Fraser Valley in B.C. where everyone has to hit the right notes, and a Face Off leaves one team in the penalty box.

The contestants reach the Arctic Ocean for the first time, via Inuvik and Tuktoyaktuk.

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

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

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

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

Goodwin reunites with her childhood sweetheart; Dr. Halstead gets lured into a concierge doctor app idea; Dr. Rhodes treats a woman with a heart infection against the advice of Dr. Charles; a former patient of Reese's reaches out for help.

The race heads to the Fraser Valley in B.C. where everyone has to hit the right notes, and a Face Off leaves one team in the penalty box.

The contestants reach the Arctic Ocean for the first time, via Inuvik and Tuktoyaktuk.

In Alden, N.Y., siblings who live next door to each other get into a conflict when a brother returns home; soon, they are at each other's throats and their family feud comes to a fiery end.

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

Team One believes a bomb is just the first in a war between rival biker gangs.

In Alden, N.Y., siblings who live next door to each other get into a conflict when a brother returns home; soon, they are at each other's throats and their family feud comes to a fiery end.

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

Team One believes a bomb is just the first in a war between rival biker gangs.

In Alden, N.Y., siblings who live next door to each other get into a conflict when a brother returns home; soon, they are at each other's throats and their family feud comes to a fiery end.

Team One believes a bomb is just the first in a war between rival biker gangs.

Dani confides in Pamela about her steamy moment with Bill; Hayley puts her husband's feet to the fire; Eva asks for Mona and Jan's help; Naomi and Jacob have a difficult conversation that leaves them with more questions than answers.

Officer Nolan is forced to spend a week in solitary confinement in a quiet border town with a young local officer who is in need of some training; Sgt. Bradford and Officer Chen go under cover together in a possible drug trafficking case.

Officer John Nolan is once again face to face with serial killer Rosalind; officers Bradford and Chen work under cover with Detective Lopez and the Las Vegas Police Department to arrest leaders of a major criminal enterprise.

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.

Officer John Nolan is assigned his first rookie, Officer Celina Juarez, whose unconventional approach to police work poses a unique challenge for him.

Rosalind returns with a vengeance and Bailey's life is left hanging in the balance; Nolan is forced to make a deadly decision after a harrowing ultimatum.

Nolan and Juarez are on the hunt for a fugitive after a car incident goes awry; a past injury comes to haunt Tim and Lucy comes through during his time in need in more ways than one.

Mickey confronts the consequences of naming Paula; Mickey and her family reconnect; a new development in the Jimmy Scanlon disappearance leads Mickey and Truman to surprising, yet familiar places.

Mickey makes a big mistake in her hunt for the killer; her family helps to right the problem; a major showdown unites the neighborhood, but it turns deadly.

Officer John Nolan is once again face to face with serial killer Rosalind; officers Bradford and Chen work under cover with Detective Lopez and the Las Vegas Police Department to arrest leaders of a major criminal enterprise.

Mickey confronts the consequences of naming Paula; Mickey and her family reconnect; a new development in the Jimmy Scanlon disappearance leads Mickey and Truman to surprising, yet familiar places.

Mickey makes a big mistake in her hunt for the killer; her family helps to right the problem; a major showdown unites the neighborhood, but it turns deadly.

Rosalind returns with a vengeance and Bailey's life is left hanging in the balance; Nolan is forced to make a deadly decision after a harrowing ultimatum.

Nolan and Juarez are on the hunt for a fugitive after a car incident goes awry; a past injury comes to haunt Tim and Lucy comes through during his time in need in more ways than one.

Officer Nolan is forced to spend a week in solitary confinement in a quiet border town with a young local officer who is in need of some training; Sgt. Bradford and Officer Chen go under cover together in a possible drug trafficking case.

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.

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

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

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

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

The 118 race to rescue two roommates desperately trying to find a needle in a haystack at a landfill, and help a woman whose nightmare dream suddenly becomes a painful reality; Athena and Maddie team up to find a missing boy in a crowded mall.

A wedding proposal tragically intersects with a bank robbery; a bride is literally stuck on her way to the altar; Athena talks a victim through her grief; Buck finds a surprise visitor on his doorstep.

A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

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

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

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

The 118 race to rescue two roommates desperately trying to find a needle in a haystack at a landfill, and help a woman whose nightmare dream suddenly becomes a painful reality; Athena and Maddie team up to find a missing boy in a crowded mall.

A wedding proposal tragically intersects with a bank robbery; a bride is literally stuck on her way to the altar; Athena talks a victim through her grief; Buck finds a surprise visitor on his doorstep.

A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

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

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

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

The 118 race to rescue two roommates desperately trying to find a needle in a haystack at a landfill, and help a woman whose nightmare dream suddenly becomes a painful reality; Athena and Maddie team up to find a missing boy in a crowded mall.

A wedding proposal tragically intersects with a bank robbery; a bride is literally stuck on her way to the altar; Athena talks a victim through her grief; Buck finds a surprise visitor on his doorstep.

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.

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

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

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

Detective Lindsay calls in suspects in the disappearance of Katie's kidnapper; Jones struggles to fit in; Herrmann celebrates his 20th wedding anniversary.

Severide feels compelled to help a man he saved from a car accident; Casey and Boden struggle to deal with the orders from Jones' father; a call to duty affects the firehouse.

Lt. Severide tries to help a firefighter from Denver struggling with addiction; Shay and Dawson plan a girls weekend at a cabin in the woods; Mills and the guys update Mouch's online dating profile.

Surprised Dawson receives a suicide note; Severide looks into Bloom's dark past; Shay and Casey search for a life-changing item.

A large explosion sends Chicago into chaos; the members of the firehouse are tested when one of their own goes missing in the blast.

A call to the field may throw a wrench in Dawson's plan to retake the firefighter exam; the firehouse welcomes a new addition; Boden makes a bold move.

A fire at a boarding school shakes up Lt. Severide; Lt. Casey tries to help Dawson; Mills looks into his father's past.

Detective Lindsay calls in suspects in the disappearance of Katie's kidnapper; Jones struggles to fit in; Herrmann celebrates his 20th wedding anniversary.

Severide feels compelled to help a man he saved from a car accident; Casey and Boden struggle to deal with the orders from Jones' father; a call to duty affects the firehouse.

Lt. Severide tries to help a firefighter from Denver struggling with addiction; Shay and Dawson plan a girls weekend at a cabin in the woods; Mills and the guys update Mouch's online dating profile.

Surprised Dawson receives a suicide note; Severide looks into Bloom's dark past; Shay and Casey search for a life-changing item.

A large explosion sends Chicago into chaos; the members of the firehouse are tested when one of their own goes missing in the blast.

A call to the field may throw a wrench in Dawson's plan to retake the firefighter exam; the firehouse welcomes a new addition; Boden makes a bold move.

A fire at a boarding school shakes up Lt. Severide; Lt. Casey tries to help Dawson; Mills looks into his father's past.

Detective Lindsay calls in suspects in the disappearance of Katie's kidnapper; Jones struggles to fit in; Herrmann celebrates his 20th wedding anniversary.

Severide feels compelled to help a man he saved from a car accident; Casey and Boden struggle to deal with the orders from Jones' father; a call to duty affects the firehouse.

Lt. Severide tries to help a firefighter from Denver struggling with addiction; Shay and Dawson plan a girls weekend at a cabin in the woods; Mills and the guys update Mouch's online dating profile.

Surprised Dawson receives a suicide note; Severide looks into Bloom's dark past; Shay and Casey search for a life-changing item.

A large explosion sends Chicago into chaos; the members of the firehouse are tested when one of their own goes missing in the blast.

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

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

In Longboat Key, Fla., a psychologist discovers her neighbor may be a violent criminal and vows to protect herself - with devastating consequences.

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

A young man is forced to infiltrate a research facility to memorize the design of a new "smart gun.".

In Longboat Key, Fla., a psychologist discovers her neighbor may be a violent criminal and vows to protect herself - with devastating consequences.

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

A young man is forced to infiltrate a research facility to memorize the design of a new "smart gun.".

In Longboat Key, Fla., a psychologist discovers her neighbor may be a violent criminal and vows to protect herself - with devastating consequences.

A young man is forced to infiltrate a research facility to memorize the design of a new "smart gun.".

The Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty, live, love, work and play in a leafy Maryland suburb just outside of Washington D.C.

Boden pushes his team to pull it together in the aftermath of the explosion; Casey works to track down a missing Severide; Newhouse brings news about one of Mills' relatives; Herrmann and Otis come up with new goals.

Severide comes back to work, but isn't his usual self; Mills discovers more information about his father's family; Herrmann asks Molly investors to share ideas that could help turn the business around.

The members of Firehouse 51 and the Austin firehouse clash when trucks collide on the way to a call; Boden comes up with a plan to get Dawson her badge; Mills faces his past and future; the Molly's group hits a speed bump starting the food truck.

Dawson tries to find balance with Lt. Casey; Mills deals with a future without the squad; Severide faces his demons; the Molly's crew meets with a city inspector.

Casey deals with the fallout from his sister's divorce; Dawson and Mills settle into their new roles at the station; Brett can't decide what she wants to do; the Molly's crew struggles to get the food truck started.

Casey helps his sister and faces down his corrupt brother-in-law; Brett goes out of her way to assist a mother in need; Mills learns about unlicensed private investigation; Dawson starts training with Herrmann.

Elvira wrestles with whether or not to kill her best friend as Mallory reveals that she has information that Elvira may be involved in a murder; to distract Emerson from the Maria Riedle case, Hughie sends Emerson on a wild goose chase.

When Ward reveals what really happened the night Maria Riedle was killed, Elvira sets about framing Hughie for the crime; Emerson and Elvira finally hook up as Mallory flees town just as a surprise face returns to Kilraven.

Severide comes back to work, but isn't his usual self; Mills discovers more information about his father's family; Herrmann asks Molly investors to share ideas that could help turn the business around.

The members of Firehouse 51 and the Austin firehouse clash when trucks collide on the way to a call; Boden comes up with a plan to get Dawson her badge; Mills faces his past and future; the Molly's group hits a speed bump starting the food truck.

Elvira wrestles with whether or not to kill her best friend as Mallory reveals that she has information that Elvira may be involved in a murder; to distract Emerson from the Maria Riedle case, Hughie sends Emerson on a wild goose chase.

When Ward reveals what really happened the night Maria Riedle was killed, Elvira sets about framing Hughie for the crime; Emerson and Elvira finally hook up as Mallory flees town just as a surprise face returns to Kilraven.

Casey helps his sister and faces down his corrupt brother-in-law; Brett goes out of her way to assist a mother in need; Mills learns about unlicensed private investigation; Dawson starts training with Herrmann.

Severide wants further investigation when a homeowner saved from a fire is found clutching a suspicious box; Molly's II needs a chef.

Boden pushes his team to pull it together in the aftermath of the explosion; Casey works to track down a missing Severide; Newhouse brings news about one of Mills' relatives; Herrmann and Otis come up with new goals.

In Tamarac, Fla., a new boy becomes friends with the most unruly youngsters in his neighborhood, leading to bad blood that boils over on Halloween and comes to a horrific end.

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

Team One races to track down an armored truck that has vanished.

In Tamarac, Fla., a new boy becomes friends with the most unruly youngsters in his neighborhood, leading to bad blood that boils over on Halloween and comes to a horrific end.

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

Team One races to track down an armored truck that has vanished.

In Tamarac, Fla., a new boy becomes friends with the most unruly youngsters in his neighborhood, leading to bad blood that boils over on Halloween and comes to a horrific end.

Team One races to track down an armored truck that has vanished.

The Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty, live, love, work and play in a leafy Maryland suburb just outside of Washington D.C.

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

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

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

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

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