This week on Prison Break, members of Agent Self’s handpicked group went to Las Vegas in pursuit of the fifth Scylla card. Sucre, Sara, Roland and Lincoln all went to Vegas while Michael, Bellick and Mahone went searching for T-Bag. T-Bag, who was threatened and tortured by Gretchen, is also trying to get Scylla. He managed to trick Bellick and took Michael, Mahone and Bellick hostage before Mahone escaped. Michael had to help him decode Whistler’s Bird Book. Mahone immediately found Self and told him what happened, and they rescued the group while trapping T-Bag underground. But Michael later found out that T-Bag was working for Gretchen, the woman who held Sara hostage, and he was threatened to get T-Bag out of the place he was trapped.