The show follows the professional and personal lives of the firefighters, rescue squad members, and paramedics of the fictional Firehouse 51.
: A new "One Chicago" crossover event featuring Chicago P.D. and Chicago Med is scheduled for this spring. Chicago FireTV Show | 2012
While original stars like Taylor Kinney (Kelly Severide) and David Eigenberg (Christopher Herrmann) remain staples, recent seasons have seen significant shifts: The show follows the professional and personal lives
: Filming primarily takes place at Engine 18 (1360 S. Blue Island Ave), a working Chicago firehouse. rescue squad members