michael spies on the sona tower guards but is seen by the second one, due to the lens glare. he observed that at 3:13 p.m., there would be a glare which causes one of the guards to look over to the other side. after a small raid takes place, the prisoners are rounded up in the yard. captain hurtado questions michael to the point that he unholsters his pistol and puts it to michael's head. whistler manages to intervene on michael's behalf. with the help of mahone, michael concluded that by drugging one of the guard's coffee, they could distract that guard. as the escape plan continues michael finally learns of sara's death, which has a devastating impact on him. in a moment of weakness he seems to challenge whistler to a duel death but this reveals to be only a diversion for the escape. this escape ultimately fails.