Robyn Coffin

Rhodes and Zanetti race to save a member of Firehouse 51; April's brother struggles during his first day at the hospital; a woman saved from a burning building leads to a bigger mystery.

Severide hides his serious shoulder injury as he tries to rescue a construction worker from a collapsed building; two teens are trapped in a vehicle.

Casey must face the consequences of confronting Detective Voight; Dawson faces disciplinary action; Severide reaches out to an old friend about his injury.

Chief Boden faces allegations after the death of a homeless man in a warehouse fire.

The squad must help defuse a volatile situation at the jail; Shay continues to be hopeful about motherhood; Herrmann's wife goes into labor; Mills and Dawson face important decisions.

Herrmann saves an infant in a blaze and the repercussions drive him on a search to uncover the truth.