DuShon Monique Brown

As racial tensions simmer inside the prison and Veronica digs into Lincoln's case, Michael tries to get a drug that will help him test positive for diabetes, and to secure a large bolt he can use in his escape plan.

After the squad is unable to save a woman from a burning building, Severide and Casey disagree on a potential arson case.

Firehouse 51 responds to a dangerous structure fire that leaves one of their own in jeopardy. Borelli confronts Boden about his brother's death.

When the squad's rig breaks down in the field, Casey reunites with his old friend and colleague Jason Kannell from Squad 6.

The prison escape drama returns for a second season. Michael and the other escapees have to make a run for it after the plane leaves without them, as a new enemy begins to close in on the missing men.

Casey gets off on the wrong foot with Chief Boden's stand-in, while Mouch flies in Cruz's brother as a birthday surprise.