Season 4
23 episodes
43 min. per episode
Where to watch
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A devoted firefighter battles personal demons while facing life-threatening emergencies, testing loyalty and love amidst Chicago's relentless chaos.
Episodes
Casey finds himself in dangerous territory at the center of an undercover operation to bring down a trafficking ring out of Nesbitt's strip club.
Internal Affairs investigates Firehouse 51 following a complicated call to a fire.
Boden's job is on the line as the crew of Firehouse 51 continues to search for evidence that could clear him of any wrongdoing.
A member of Firehouse 51 requires the support of the whole team to recover from a near disaster.
Boden offers to host a wedding at the firehouse after a fire ruins the ceremony, but Chief Riddle is against it and his political aspirations cause friction among the firefighters.
Follows both the professional and personal lives of the firefighters, rescue personnel, and paramedics of the Chicago Fire Department at the fictional Firehouse 51 as they risk their lives to save and protect the city of Chicago, Illinois.