is almost complete, and that they will break out of Sona that night. Michael, Whistler, Mahone and fellow inmate McGrady (Carlo Alban) manage to escape; Lechero, T-Bag and Bellick are caught by the Sona guards. Lincoln wants to shoot Mahone in revenge for killing his father, but Whistler escapes from Lincoln's custody and Lincoln is forced to chase him. Mahone takes advantage of the situation and flees, eventually making his way to a bar. Mahone is approached by Whistler, who offers him a job in the Company with him and operative Gretchen Morgan (Jodi Lyn O'Keefe). Mahone warns Whistler that Gretchen is the "weak link", and that Michael will eventually hunt them down if Gretchen has indeed killed Sara. Season 4 Mahone accepts Whistler's offer to work for the Company, although the group is secretly working with Homeland Security to destroy the Company, focusing their attention on a card (code-named "Scylla"), which contains information on all of the Company's agents and operations. Whistler finds the card; however, he is killed by the Company's hitman, Wyatt (Cress Williams), who takes the card. Mahone returns to his family home to find his son has been murdered and since he is a wanted criminal, he is arrested by the police. Mahone is contacted by Agent Don Self (Michael Rapaport), a Homeland Security agent who was working with Whistler to take down the Company. He offers Mahone freedom if he joins an unofficial operation to recover Scylla from the Company. Mahone accepts, learning that other members of the operation are Michael, Lincoln, Sara, Bellick, Sucre and computer hacker and identity thief Roland Glenn (James Hiroyuki Liao). The group devises a plan to regain the card, which succeeds, however, they learn that Scylla is actually made up of six cards held by different members of The Company. The group continues to look for the other cards, while Mahone asks Lang to find out who killed his son. Mahone obtains a picture of Wyatt and meets with his estranged wife Pam, who makes him promise to hunt down and kill Wyatt. When Wyatt is captured Mahone tortures him, forcing him to apologize to his wife over the phone. He ties a cinderblock to Wyatt's wrists, and drowns him in the ocean. The group manages to complete Scylla, and Lincoln absolves Mahone for his role in his father's death. Self betrays the team and steals Scylla, forcing