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Chicago Fire (TV series) season 12

The twelfth season of the American television drama series *Chicago Fire* premiered on NBC on January 17, 2024 and concluded on May 22, 2024.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The twelfth season of the American television drama series *Chicago Fire* premiered on NBC on January 17, 2024, and concluded on May 22, 2024. The season contains 13 episodes and follows the firefighters, rescue squad, and paramedics of Firehouse 51 as they face emergencies and major personnel changes. It maintains the show's ensemble format and workplace relationships.

Premise

Season 12 continues the long-running drama about Firehouse 51 in Chicago, focusing on emergency calls, rescues, and the personal lives of the crew. The season maintains the show’s ensemble format and workplace relationships.

Broadcast and episodes

The season aired on NBC from January 17 to May 22, 2024. It consisted of 13 episodes, with titles including "Barely Gone," "Call Me McHolland," and "Never Say Goodbye." The finale episode was titled "Never Say Goodbye."

Cast and character changes

Season 12 included returns and departures that affected Firehouse 51’s lineup. Sylvie Brett left after marrying Matthew Casey, while Kelly Severide remained part of the season and new firefighter Jake Gibson was introduced.

Season arc

The season centered on high-stakes rescues and internal leadership changes at Firehouse 51. Its closing episodes set up Boden’s possible promotion to Deputy Commissioner and Herrmann’s elevation to Battalion Chief.

Key facts

  • Season 12 premiered on NBC in January 2024 and aired 13 episodes through May 2024.
  • The season finale was titled "Never Say Goodbye."
  • The season featured major character changes, including Sylvie Brett's departure after her wedding to Matthew Casey.
  • Kelly Severide returned as a central character during the season.
  • The season ended with Wallace Boden pursuing a Deputy Commissioner role and Herrmann being positioned to become Battalion Chief.
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Canadian context

As an NBC series widely distributed in Canada through television and streaming, season 12 is relevant to Canadian viewers who follow U.S. network dramas and the broader One Chicago franchise.

Frequently asked questions

When did Chicago Fire season 12 premiere?
It premiered on NBC on January 17, 2024.
How many episodes are in season 12?
Season 12 has 13 episodes.
When did Chicago Fire season 12 end?
The season finale aired on May 22, 2024.
What is the title of the season 12 finale?
The finale is titled "Never Say Goodbye."
Did Sylvie Brett leave in season 12?
Yes. Her storyline ended in season 12 after she married Matthew Casey.
What network aired Chicago Fire season 12?
NBC aired the season, with episodes also available next day on Peacock.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Chicago_Fire_season_12
    Supports: Season title, episode count, finale title, episode and season-level broadcast details
  2. NBChttps://www.nbc.com/nbc-insider/chicago-fire-season-12-premiere-date-cast-photos-details
    Supports: Premiere date, NBC broadcast, next-day Peacock availability, season context
  3. NBChttps://www.nbc.com/nbc-insider/when-is-the-chicago-fire-season-12-finale
    Supports: Finale date and season 13 renewal mention
  4. TheTVDBhttps://www.thetvdb.com/series/chicago-fire/seasons/official/12
    Supports: Episode list, original air dates, season synopsis
  5. Rotten Tomatoeshttps://www.rottentomatoes.com/tv/chicago_fire/s12/cast-and-crew
    Supports: Season 12 cast/crew, network, genre, release date
  6. Rotten Tomatoeshttps://www.rottentomatoes.com/tv/chicago_fire/s12/e12
    Supports: Episode 12 title, release date, and creative credits