the movie starts with michael and sara getting married. they have a celebration at a restaurant by the beach, which is interrupted by a squadron of fbi agents who pull up to the area. they arrest sara for the murder of christina hamilton (christina scofield). the only footage they had of the scene was where you could only see sara shooting christina, but not christina's gun. sara ends up in prison right across from the general and t-bag. michael is not allowed to see sara as the fbi suspect he is planning an escape. as michael, lincoln, sucre, and mahone plan the escape, mahone admits that he was approached to be an under cover for the fbi to get his job back.