Plot summary
Scofield tracks Whistler, Morgan and Mahone to a party, where Whistler acquires a specific card before copying it secretly. Scofield arrives to kill Morgan for Tancredi's murder, but Morgan reveals that Tancredi is still alive. Scofield calls Lincoln, who is living a peaceful life with L.J. and Sofia in Panama. The General blames Morgan for bringing a copy instead of the original card and orders Wyatt Mathewson, his henchman, to take care of her. Scofield meets Whistler, who tells him about Scylla, the card that contains the Company's black book; but Mathewson arrives, kills Whistler and recovers the card.
Lincoln kills a Company operative and is arrested. Mahone finds out that his son has been killed by Mathewson. Sucre and Bellick are revealed to have escaped Sona, which was burnt. Bagwell has also escaped and has plans to return to the U.S. to investigate Whistler's book. He is abandoned with his friend in the American deserts. Scofield reunites with Tancredi and they accept DHS agent Donald Self 's offer to recover Scylla and defeat the Company in exchange for immunity, teaming up with Burrows, Mahone, Sucre and Bellick.
Credits
Adapted from Wikipedia contributors, Prison Break season 4. HTML formatting and reference markers removed.