1. Kicking Down Doors

9.2

. 1 October 2025. 42 min

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.

2. Primary Search

7

. 8 October 2025. 42 min

Vasquez fights to prove himself at 51. Violet and Novak pursue a troubling mystery. Herrmann is on a quest to keep Molly's profitable.

3. All in the Blood

7

. 15 October 2025. 42 min

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.

4. Mercy

10

. 22 October 2025. 42 min

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.

5. Ghosts

8

. 29 October 2025. 42 min

Cruz hunts for the identity of an unknown ally. Mouch takes steps to help a friend. Vasquez must make a difficult choice.

6. Broken Things

9.3

. 5 November 2025. 42 min

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.

7. Pierce the Vein

9.2

. 12 November 2025. 42 min

Severide investigates a suspicious high school fire. Novak gets an unexpected call. Violet brings a 51 firefighter onboard the ambulance for a shift.

8. A Man Possessed

0

. 7 January 2026. 42 min

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.

9. Crime of Passion

0

. 14 January 2026

A member of the Firehouse 51 family remains in peril. Cruz lends a hand to Severide in the ongoing investigation.

10. Carry a Torch

0

. 21 January 2026

Novak explores a new romantic connection. Vasquez deals with the aftermath of his father's recent release.