Ora Jones

Lincoln Burrows is scheduled to die on death row for an assassination his younger brother Michael is convinced he did not commit. With no other options and time running out, Michael takes drastic measures to get incarcerated alongside his brother. Once inside, Michael – a structural engineer with the blueprints for the prison – begins to execute an elaborate plan to break Lincoln out and prove his innocence.

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.

Tragedy strikes when a rescue attempt at a tenement building proves unsuccessful, leaving the men and women of firehouse 51 affected by the loss of the victim. Severide's decision to put Mills on the fast track to move from Truck to Squad doesn't sit well with some of the others and tension mounts between Severide and Casey over Heather Darden. Shay and Dawson are forced to deal with a junkie's crazy behavior while on a call and Shay considers a different way to have a family. Meanwhile, the team draws the ire of local drug dealers who threaten the peace and safety of the neighborhood and firehouse.

Events force Lieutenant Casey to team up with the Intelligence Unit, now run by Voight, who doesn’t appear to have changed his crooked ways after his stint in prison. Shay's excitement at the prospect of becoming a parent grows, while Mills and Dawson face some personal challenges. Meanwhile, the house comes together to support the opening of Molly's.

Time is running out, and Michael must enlist the help of his cellmate Sucre to help execute his elaborate escape plan. But Sucre wants no part of it and asks for a cell transfer, and Michael’s new cellmate Haywire is even worse than he sounds. Meanwhile, Veronica meets a woman who may be able to help stop Lincoln’s execution.