Season
- Season 0 2014-02-11
- Season 1 2012-10-10
- Season 2 2013-09-24
- Season 3 2014-09-23
- Season 4 2015-10-13
- Season 5 2016-10-11
- Season 6 2017-09-28
- Season 7 2018-09-26
- Season 8 2019-09-24
- Season 9 2020-11-10
- Season 10 2021-09-21
- Season 11 2022-09-20
- Season 12 2024-01-17
- Season 13 2024-09-24
- Season 14 2025-10-01
Season 14 Episode
- Season 4 Let It Burn
- Season 4 A Taste of Panama City
- Season 4 I Walk Away
- Season 4 Your Day Is Coming
- Season 4 Regarding This Wedding
- Season 4 2112
- Season 4 Sharp Elbows
- Season 4 When Tortoises Fly
- Season 4 Short and Fat
- Season 4 The Beating Heart (I)
- Season 4 The Path of Destruction
- Season 4 Not Everyone Makes It
- Season 4 The Sky Is Falling
- Season 4 All Hard Parts
- Season 4 Bad for the Soul
- Season 4 Two Ts
- Season 4 What Happened to Courtney
- Season 4 On the Warpath
- Season 4 I Will Be Walking
- Season 4 The Last One for Mom
- Season 4 Kind of a Crazy Idea
- Season 4 Where the Collapse Started
- Season 4 Superhero
Chicago Fire - Season 4 Episode 1 Let It Burn
8.41 42 minutes 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 surprise for Severide. Dawson recognizes that her life is about to change. A new candidate makes an unusual first impression. Residents band together to protest a drug den in their neighborhood.
