In order to get Abruzzi back in command of the prison's work detail (and the escape plan back on track), Michael must finally give up Fibonnaci's location (and life) to Philly Falzone; Kellerman and Hale get a little unwanted 'help' to track down a missing LJ; Veronica and Nick uncover evidence against the man Lincoln was convicted of murdering; Michael and Dr. Sara grow closer; And the escape gang grows by one.

With proof that his escape plan is working, Michael gets suited up to overcome the vertical limits of his last obstacle. Back in PI, as the escape attempt draws near, the group tries to reduce their number by one and targets T-Bag, who has some insurance in his pocket. Outside the prison walls, LJ slips away to attend his mother's funeral, which is also attended by her murderer. Veronica gets a call from an unlikely source who sheds light on the night of Terrence Steadman's assassination.