16 episodes · first aired 2020-11-11
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | Rattle Second City 2020-11-11 | 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. | 2020-11-11 | 5.8 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.
| 02 |
That Kind of Heat 2020-11-18 |
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 harms way during a harrowing call. |
| 2020-11-18 |
| 6.7 |
 | 03 | Smash Therapy 2021-01-13 | 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. | 2021-01-13 | 6.5 |
 | 04 | Funny What Things Remind Us 2021-01-27 | While completing a task assigned by headquarters, Boden makes an unforeseen connection. Gallo is forced to make a surprise rescue to one of their own when the firehouse is called to the site of a construction explosion. Mouch reignites an old feud. | 2021-01-27 | 7.0 |
 | 05 | My Lucky Day 2021-02-03 | 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. | 2021-02-03 | 8.0 |
 | 06 | Blow This Up Somehow 2021-02-10 | Gallo makes a split-second decision during a dangerous fire rescue leaving Casey steaming that his direct orders were not obeyed. Kidd feels a strain in her relationship with Severide. Brett and Mackey find themselves searching for answers following a series of suspicious calls. | 2021-02-10 | 7.8 |
 | 07 | Dead of Winter 2021-02-17 | 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. | 2021-02-17 | 7.8 |
 | 08 | Escape Route 2021-03-10 | 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. | 2021-03-10 | 7.0 |
 | 09 | Double Red 2021-03-17 | Mouch, Gallo, Ritter and Mackey report for training. A nasty blow to the head brings Casey unimaginable pain. | 2021-03-17 | 8.0 |
 | 10 | One Crazy Shift 2021-03-31 | 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. | 2021-03-31 | 7.6 |
 | 11 | A Couple Hundred Degrees 2021-04-07 | A new recruit with ties to the CFD tests Serveride's patience. Violet receives a mysterious note that sends her and Brett on a hunt for the person who wrote it. | 2021-04-07 | 7.8 |
 | 12 | Natural Born Firefighter 2021-04-21 | 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. | 2021-04-21 | 8.0 |
 | 13 | Don't Hang Up 2021-05-05 | 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. | 2021-05-05 | 7.6 |
 | 14 | What Comes Next 2021-05-12 | 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. | 2021-05-12 | 7.8 |
 | 15 | A White-Knuckle Panic 2021-05-19 | Severide and Casey try to find the best fit for Kidd. Ritter, Gallo and Violet help plan an event for Mouch. | 2021-05-19 | 6.3 |
 | 16 | No Survivors 2021-05-26 | The firehouse reacts to some exciting news, a mysterious stranger arrives and a shocking call takes Severide's breath away. | 2021-05-26 | 8.6 |
