Michael Accardo

Brett and Foster question the suspicious circumstances surrounding an attack at a juvenile detention centre. A convoluted new technology at Firehouse 51 tests everybody's patience and Kidd is chosen to represent the district at a leadership conference.

A member of the Firehouse 51 family remains in peril. Cruz lends a hand to Severide in the ongoing investigation.

When an act of arson harms someone close to the Firehouse 51 family, Severide must track down the perpetrator. Impending budget cuts push Mouch and Pascal to get creative.

Pacal finds himself under intense scrutiny when a member of the firehouse is injured on a call. Herrmann grapples with family issues.