Guy Burnet

Severide and Stella keep an eye out for Grant; Louie has Dawson questioning her dangerous career path; Casey's relationship with Susan Weller cools down; tensions between Borrelli and Boden reach a boiling point.

Severide is led to reexamine a case from the past while he investigates the discovery of a baby's body in a chimney; with election day nearing, Casey prepares for another confrontation with Alderman.

Lt. Boden and Jimmy are at odds in the aftermath of recent events; Kidd must deal with her volatile ex; Dawson puts on her best face in the pursuit of fostering Louie; Casey leaves town to attend a three-day summit.

A propaganda attack causes Casey to reconsider his run for alderman; when a man is trapped inside a burning car, it seems the fire may have been set intentionally; Trudy's nerdy brother plans Mouch's bachelor party; a kidnapping investigation.

Casey and Dawson get caught in what may be a political mess; Stella has a big decision to make about her boyfriend; members of the squad are in a dangerous situation after responding to a car accident; Severide befriends a famous socialite.

A building collapses and leaves dozens of people trapped and injured; Chief Boden faces a life-or-death decision in the rescue plan; Dawson continues her quest to foster Louie; tensions flare between Casey and Antonio.