
As the firefighters, rescue squad and paramedics of Chicago Firehouse 51 forge headfirst into danger, the choices they make can mean the difference between life and death. But from the relentless pressure of saving lives, an extended family is forged. When it's go time, Firehouse 51 lays it all on the line for each other. This high-octane drama from Executive Producer Dick Wolf offers an edge-of-your-seat view into the lives of everyday heroes committed to one of America's noblest professions.

Citing a need for improvement, Chief Anderson reassigns members of 51 to other firehouses, leaving the crew members to make the best of their respective new situations; Severide struggles with an important decision.

Fire and rescue are called when an old warehouse-turned-work space turns into a firestorm, trapping countless victims; the doctors and nurses of Chicago Med deal with a barrage of patients as victims of the disaster are brought through the doors.

Members of the fire and rescue squads become hostages when a group of armed gang members invades and assumes control over Firehouse 51 during a turf war.

A series of similar car accidents raises suspicion that someone may be targeting innocent people; Severide tries to make Anna feel welcome in her new Chicago surroundings; a persistent constituent asks for Alderman Casey's help in resolving an issue.