Synopsis

A rescue effort at a tenement building ends in sorrow, and the men and women of Firehouse 51 are deeply affected by the loss. Severide’s decision to accelerate Mills' advancement from the Truck company to the Squad team creates friction among his colleagues, and a subtle tension grows between Severide and Casey over Heather Darden. On a routine call, Shay and Dawson must navigate the unpredictable actions of a disturbed individual, prompting Shay to contemplate alternative paths to motherhood. S