In April 2023, the series was renewed for a twelfth season, which is scheduled to premiere on January 17, 2024. The eleventh season premiered on September 21, 2022. The tenth season premiered on September 22, 2021. In February 2020, the series was renewed for its ninth, tenth, and eleventh season. As of May 24, 2023, the series had 239 episodes. The series premiered on NBC on October 10, 2012. The show follows the professional and personal lives of firefighters, rescue personnel, and paramedics of the Chicago Fire Department at the fictional Firehouse 51. It is the first installment of Wolf Entertainment's Chicago franchise, which deals with different public services in Chicago, Illinois. Chicago Fire is an American drama television series created by Michael Brandt and Derek Haas, with Dick Wolf as an executive producer.