S1, E19: The mystery man reveals himself to Lincoln as well as his connection to some bad company; when Michael realizes Sara holds the key to the escape plan, he takes their relationship to another level; Fox River turns into a mob scene when a familiar face returns; Tweener must choose sides; and Bellick may finally discover the "hole" truth on the “"he Key."

Starring Frank Grillo, Rockmond Dunbar, Patricia Wettig