Defcon 1

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.