Michael and Sarah become more than strangers on a train en route to confront the president; Mahone recruits a new ally in his bid to capture the fugitives; T-Bag puts on a happy face; a fourth escapee takes a fall.
Kidnapped by a delusional ex-boyfriend, C.D.'s niece (Shannon Fill) accompanies him on a bank-robbing spree that leaves a trail for bounty hunters and Walker.
Walker takes the wheel when Team Cherokee's driver is sidelined; Trent and Carlos must retrieve stolen evidence to convict a child pornographer.
Walker persuades his superiors to let a former Ranger don a uniform once more to stop his vigilante pursuit of the jewel thieves who shot his daughter.
A saboteur tries to prevent a race-car team comprised of American Indians from competing in a big race.