The NBC series "Chicago Fire" has not been cancelled as of 2015. NBC announced in February 2015 that "Chicago Fire" would return for a fourth season beginning in October 2015. "Chicago Fire" ranked as the network's second highest-rated drama during its third season, prompting the renewal.
The network also announced that Chicago Fire would stay in the 10 p.m. Tuesday night time slot. Despite mixed reviews from critics, the show is a ratings success that has ranked as one of the top 50 most viewed shows since moving to that time slot in 2013. Chicago Fire averaged 9.85 million viewers during its third season, even though its lead-in shows "About a Boy" and "One Big Happy" were both cancelled for poor ratings.