David A. MacDonald

Pilot. When a fire claims one of their own, there's plenty of guilt and blame to go around. Lt. Matthew Casey (Jesse Spencer), in charge of the Truck, tries to carry on, but clashes with the brash Lt. Kelly Severide (Taylor Kinney) of the Rescue Squad - and each blames the other for their fallen team member.

Devon treats his first patient with a revolutionary medical fluid that doesn't go as planned; an overdosed John Doe is rushed to Chastain.

Conrad confronts a pharmacy owner about fraudulent prescriptions; a street racing accident results in multiple severe injuries.

Conrad and Cade work with a Medicare patient who sheds some light on the inner workings of the prescription fraud situation.

As the quest continues, newcomers rouse emotions.

While searching for a drug supplier, Wysocki and Evers uncover an elaborate murder case; Teresa tries to get new radios for the department.