Episode guide
Chicago Fire: Season 4
23 episodes · premiered Oct 13, 2015
When internal investigations and city politics start to interfere with operations, tensions rise. The firefighters must band together to protect their own and preserve the integrity of the team.
- Episode 1: Let It Burn Oct 13, 2015 · 43m Casey is placed in a dangerous situation while working undercover to bring down a trafficking ring being run out of Nesbitt's club. The squad's high turnover rate results in an unwelcome…
- Episode 2: A Taste of Panama City Oct 20, 2015 · 43m Boden's job is on the line pending an internal investigation. Severide adjusts to Patterson, his new commanding officer. Dawson shakes things up at the work. Casey searches for important…
- Episode 3: I Walk Away Oct 27, 2015 · 43m Evidence that seems to exonerate Boden may not be enough. Brett and Chili find themselves in a precarious situation. The team responds to a stuck elevator in a hotel. Jimmy Borrelli's…
- Episode 4: Your Day Is Coming Nov 3, 2015 · 43m The squad members come together to support one of their own. Herrmann tries to figure out how to reopen Molly's after it gets shut down. Severide digs deep into the arson investigation.
- Episode 5: Regarding This Wedding Nov 10, 2015 · 42m Boden offers to host a wedding at the firehouse after a fire destroys the original location, but it doesn't sit well with Chief Riddle, who also butts heads with Dawson over her ability to…
- Episode 6: 2112 Nov 17, 2015 · 42m Boden's new neighbor asks him for a favor that could have serious repercussions. Severide is upset when he's treated like a candidate by Patterson. Cruz is visited by a gangbanger who…
- Episode 7: Sharp Elbows Nov 24, 2015 · 43m Boden suspects his neighbor is setting him up; Severide, who's still on probation, receives a surprise visit from his father and also learns something about Patterson that could be a game…
- Episode 8: When Tortoises Fly Dec 1, 2015 · 41m Boden believes Maddox is behind Serena's accusations. Severide reaches out to Jamie, who's Maddox's lawyer, in an attempt to help. Patterson questions whether Boden can remain chief. Brett…
- Episode 9: Short and Fat Dec 8, 2015 · 42m Patterson fills in for Boden, who's trying to clear his name. Severide learns where Serena may be hiding. Herrmann and Otis give Freddie a job that keeps him close by. Jimmy and Chili draw…
- Episode 10: The Beating Heart (I) Jan 5, 2016 · 42m Herrmann fights for his life after being stabbed; Cruz hits the streets to find Freddie. Mouch proposes to Trudy. The crossover continues on Chicago Med S01E05 Malignant (II) and Chicago…
- Episode 11: The Path of Destruction Jan 19, 2016 · 43m A tornado threatens Chicago. Chili makes a major mistake, which causes Brett to report her to Boden. Otis asks Dawson to help him solve his women troubles. Severide assists a Department of…
- Episode 12: Not Everyone Makes It Jan 26, 2016 · 43m Freddie's father begs Herrmann to forgive his son's assault. Casey discovers that a makeshift shelter housing people displaced by the tornado may close. Casey attends a fund-raiser at the…
- Episode 13: The Sky Is Falling Feb 2, 2016 · 43m The team responds to a mass shooting; Casey investigates the missing money from the fund-raiser. Jimmy agrees to represent the firehouse in a boxing match against the Chicago PD's 21st…
- Episode 14: All Hard Parts Feb 9, 2016 · 42m Severide confronts Chili about her erratic behavior. Members of the firehouse rally around Casey, who they think would make a great candidate for alderman. Jimmy squares off against…
- Episode 15: Bad for the Soul Feb 16, 2016 · 43m The team responds to a suspicious call from a neighboring firehouse; and welcomes a new firefighter, though her addition has repercussions. Casey moves forward in his run for alderman.
- Episode 16: Two Ts Feb 23, 2016 · 41m Casey reconsiders his run for alderman after he's targeted by a propaganda campaign. The squad responds when a man is trapped inside of a burning car. Trudy's nerdy brother plans Mouch's…
- Episode 17: What Happened to Courtney Mar 29, 2016 · 42m Severide and Cruz find a child's remains inside a chimney while investigating a possible carbon monoxide leak inside a home. In other events, Casey braces for the worst in his run for…
- Episode 18: On the Warpath Apr 5, 2016 · 42m Sylvie witnesses a murder and is threatened by the shooter not to go to the police. Firehouse 51 jumps into action when a fire breaks out at a restaurant and traps several people inside a…
- Episode 19: I Will Be Walking Apr 19, 2016 · 43m Casey steps up to help a teenager being bullied by a gang; Severide bonds with a detective’s son after her life is threatened; and Kidd and Herrmann go head-to-head in a test of bar…
- Episode 20: The Last One for Mom Apr 26, 2016 · 43m Firehouse 51 unites to help a young boy in tragic circumstances. A high-powered political consultant helps Casey navigate a potential scandal. Cruz makes a mistake that nearly costs him…
- Episode 21: Kind of a Crazy Idea May 3, 2016 · 42m Dawson saves a young boy from an apartment fire. Kidd's idea for Molly's doesn't go as hoped. Severide hits a wall while advocating for new fire masks. Cruz and Brett utilize a secret…
- Episode 22: Where the Collapse Started May 10, 2016 · 41m The team responds to a building collapse that's trapped more than a dozen people. Dawson's quest to foster Louie is aided by a familiar face. Otis, who's on medical leave, meets his…
- Episode 23: Superhero May 17, 2016 · 43m Boden and Jimmy are at odds. Kidd deals with her unstable ex. Dawson continues her quest to foster Louie. Casey's new political consultant urges him to think big. The team responds to a…