Chicago Fire is an American action drama television series that airs on NBC and was created by Michael Brandt and Derek Haas with Dick Wolf serving as an executive producer. The series originally premiered on October 10, 2012. The show follows the lives of the firefighters and paramedics working at the Chicago Fire Department at the firehouse of Engine 51, Truck 81, Squad 3, Ambulance 61 and Battalion 25. The pilot episode had an early release at NBC.com, before the series' premiere on television.