Karen Aldridge

Pete rethinks his career after learning that not every call has a happy ending, and Shay decides if she has a future with a married woman.

The team transport the victims of a terrible chemical leak to Chicago Med, where a bad situation quickly turns seriously worse.

Dr Halstead treats a blast from his past, and Manning and Charles try to treat a young patient who refuses to take medication.

Firehouse 51 joins forces with the Chicago Police Department to combat a massive explosion that leaves the city in carnage and one of the crew missing.

Severide springs into action when gunmen open fire on the subway. Gabby Dawson learns a harsh lesson on her first day as a firefighter.

Casey tries to convince everyone he is healthy, Shay avoids the lawyer who wants to talk about Daryl's suicide, Otis and Katie grow closer, and Boden helps a woman with a negligent landlord.