: One of the most intense subplots involves Alexander Mahone pursuing Wyatt, a Company assassin who murdered Mahone's son.
: Brad Bellick, who began the series as a villainous guard, completes a redemption arc by sacrificing his life to help the team reach a critical stage of the heist. Prison Break - Temporada 4
: In a major mid-season twist, Don Self betrays the team after they successfully retrieve Scylla, intending to sell it for his own profit. Prison Break: Season 4 | Cast and Crew - Rotten Tomatoes : One of the most intense subplots involves
: To steal Scylla, they use a device created by a new character, Roland Glenn, which can copy data from electronic storage devices in close proximity. Key Character Arcs and Surprises Prison Break - Temporada 4