Kellerman and Hale blackmail Warden Pope, Michael finds out he might get out earlier than anticipated, and Veronica becomes uncertain of her allies.
Michael's ploy to buy some work time by prompting a cellblock lockdown leads to a full-scale riot, Nick convinces Veronica that he really does want to help her, and Kellerman hires an inmate to kill Lincoln.
T-Bag loses one slave and targets another, Kellerman and Hale continue to follow LJ who tries to contact Veronica for help, and Abruzzi's inability to meet the gangsters' demands jeopardises the escape.
As the riot continues to rage inside the prison, Michael risks everything to rescue Sara, and the assassin tries to kill Lincoln. Meanwhile, Veronica and Nick fly to Washington to trace the tipster's phone call.
Michael, Lincoln and the inmates risk life and limb, the Vice President fears she will lose her command if not her life, and Veronica tracks down the most significant piece of evidence to prove Lincoln's innocence.