After Michael gets bad news from Linc, he sets out to find a prisoner named Whistler, who holds the key to his freedom. That's easier said than done: Whistler is hiding in Sona because there's a price on his head, and Lechero is not about to help Michael find him. In addition, both Mahone and Bellick want to get to Whistler too. Meanwhile, T-Bag won't allow a little humiliation stop him from insinuating himself into Lechero's good graces.