Michael tries to figure out how to tunnel in a building that houses a guards' break room, Kellerman and Hale attempt to kill Veronica and LJ, and T-Bag tries to dodge responsibility for Bob's murder.
New-to-the-crew Sylvie shines as the crew answer three dramatic call-outs. Casey asks Newhouse to help dig up dirt on his sister's husband.
Drama threatens to ruin Jamal and Kai's special day, and Damon threatens to expose Cookie's secret. Elsewhere, Teri confides in Cookie, and Andre asks Lucious for help.
A lavish groundbreaking of the modernised O'Hare terminals cements Kane's legacy. Despite his seemingly bright political future, Kane continues to struggle with his disease.
Kane's war against political corruption threatens his hold over the City Council. Worsening mental symptoms leave Kane unable to tell the difference between reality and hallucinations.