The second season of Chicago Fire, an American drama television series with executive producer Dick Wolf, and producers Derek Haas, Michael Brandt, and Matt Olmstead, premiered on September 24, 2013, but on a new timeslot on Tuesday at 10:00 pm from Wednesday at 10:00 pm, on the NBC television network. The season concluded on May 13, 2014, and consisted of 22 episodes.

Chicago Fire is an American procedural drama television series created by Michael Brandt and Derek Haas, with Dick Wolf as an executive producer. It is the first installment of Wolf Entertainment's Chicago franchise, which deals with different public services in Chicago, Illinois. The show follows the professional and personal lives of firefighters, rescue personnel, and paramedics of the Chicago Fire Department at the fictional Firehouse 51. The series premiered on NBC on October 10, 2012. As of May 8, 2024, the series has aired 250 episodes. In April 2023, the series was renewed for a twelfth season, which premiered on January 17, 2024. In March 2024, the series was renewed for a thirteenth season.