5 seasons available
A new face at Firehouse 51 causes tension, while rising chaos in the city brings new challenges to the team; Herrmann stalls on plans of relinquishing his office to Mouch.
Vasquez fights to prove himself at 51; Violet and Novak pursue a troubling mystery; Herrmann is on a quest to keep Molly's profitable.
When city budget cuts stretch crews thin, Pascal takes matters into his own hands; Vasquez looks to an old friend for help; an incident in the field hits close to home for Violet.
Firehouse 51 must band together after a devastating fire catches them off guard; Vasquez continues his quest for answers; Violet and Novak face an unexpected roadblock in the new training protocol.
Cruz hunts for the identity of an unknown ally; Mouch takes steps to help a friend; Vasquez must make a difficult choice.
A traffic jam forces Violet and Novak to take drastic measures to save a patient; Severide shadows Pascal for a day; Kidd goes the extra mile for Isaiah.
Severide investigates a suspicious high school fire; Novak gets an unexpected call; Violet brings a 51 firefighter onboard the ambulance for a shift.
When an act of arson harms someone close to the Firehouse 51 family, Severide must track down the perpetrator; impending budget cuts push Mouch and Pascal to get creative.
A member of the Firehouse 51 family remains in peril; Cruz lends a hand to Severide in the ongoing investigation.
Novak explores a new romantic connection; Vasquez deals with the aftermath of his father's recent release.
Herrmann grows uneasy when a local accident attorney inserts himself into a routine call; Firehouse 51 gets a visitor.
Pascal finds himself under intense scrutiny when a member of the firehouse is injured on a call; Herrmann grapples with family issues.
Firehouse 51 is called to an airfield when a passenger jet suddenly goes silent midair, triggering a high-stakes emergency; their discovery cracks open a bigger and deadlier mystery with consequences that could put countless lives in jeopardy.
Severide is on high alert to track down a reckless driver who puts one of their own in harm's way; a member of Firehouse 51 struggles with a potentially life-changing decision.
A car crash puzzles Kidd and Vasquez; Herrmann gets his chance in the spotlight; Violet and Novak deal with a moral dilemma.
Severide is forced to overcome obstacles at the firehouse; Cruz finds himself at a loss amid the new changes in his family.
After a devastating fire erupts at a surgery center, Kidd works to hunt down the true cause; Violet, Novak and Vasquez grapple with shifting relationships; Molly's hosts its first trivia night.
While in the field, Violet and Novak are thrust into a dangerous and rapidly escalating situation, forcing them to rely on their instincts to protect both themselves and a vulnerable patient.
Severide investigates a fire at an abandoned store inhabited by squatters; Mouch pens a memoir about his life.
Severide is forced to crack open a cold case buried for decades; a routine call hits too close to home for Novak.
Severide and Kidd welcome a surprise visitor; Herrmann and Cindy renew their vows; Mouch receives some encouraging news.
In the face of adversity, Pascal searches for justice; Violet struggles to write a letter to Carver; Damon returns to the floater pool hoping to secure a permanent spot at 51.
Kidd strengthens her bond with Natalie during a road trip; Severide investigates a car fire and uncovers surprising evidence; Violet receives a career opportunity after being featured in a local newspaper.
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.
Brett and Mackey find their lives in peril; Casey and Brett tread in unfamiliar territory; Severide chases a memory while Kidd adeptly solves a firehouse problem; Ritter puts himself in harm's way during a harrowing call.
A mishap on the aerial ladder in the midst of a fire rescue leaves Mouch shaken and questioning his abilities; Kidd looks for support from Severide while Casey and Brett discuss their future.
While completing a task assigned by headquarters, Boden makes an unforeseen connection; Gallo is forced to make a surprise rescue of one of their own when the firehouse is called to the site of a construction explosion; Mouch reignites an old feud.
When Firehouse 51 is called to the scene of a dangerous blaze inside a 10-story storage unit, Herrmann and Cruz find themselves trapped inside a freight elevator with all communications cut off.
Gallo makes a split-second decision during a dangerous fire rescue, leaving Casey steaming that his direct orders weren't obeyed; Kidd feels a strain in her relationship with Severide; Brett and Mackey search for answers after some suspicious calls.
A fire at a homeless encampment leaves Severide and Casey searching for answers; Cruz is shaken up after a close call; Ritter lends a helping hand to a victim.
A call to a familiar location brings back mixed emotions for Severide; Herrmann heads out for a vacation; Casey is not thrilled with his replacement.
Mouch, Gallo, Ritter and Mackey report for training; a nasty blow to the head brings Casey unimaginable pain.
A series of suspicious fires sends 51 on a search for the cause; Casey continues down a troubling path; Mouch is looking to make his long-awaited dream come true.
A new recruit with ties to the CFD tests Severide's patience; Violet receives a mysterious note that sends her and Brett on a hunt for the person who wrote it.
While Mouch makes an incredible save, all eyes are on a mystery man who helped save his neighbor; Casey worries about his future at the CFD.
A mysterious caller who is in danger relies on Kidd to help save her and her brother; the firehouse helps Cruz get ready for fatherhood.
A fire breaks out at a pet food factory, and Casey and Severide help the owner, Pete, get to the bottom of it; the annual garage sale takes place at 51 and everyone is on edge.
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.
The members of Firehouse 51 struggle to cope when one of their own dies in a fire; as Lts. Casey and Severide blame each other for the tragedy, Casey also secretly goes through a separation.
Severide hides his serious shoulder injury as he tries to rescue a construction worker from a collapsed building; two teens are trapped in a vehicle.