Vince Davis

Lincoln must say goodbye to yet another loved one as he attempts to reunite with Michael; Michael's attempt to secure a getaway plane is grounded; Mahone deciphers a crucial puzzle piece; T-Bag gets his revenge on his tormentors; and Sara and Kellerman have a tense face-off that leaves one of them gasping for their last breath.

Michael and Sara realize that Warden Pope (guest star Stacy Keach) is the key to recovering information that will bring down "The Company"; Mahone corners another escapee; C-Note fears for his daughter's life; Sucre learns the dangers of hitchhiking en route to reuniting with Maricruz; and T-Bag walks down memory lane when he takes the Hollander family to his childhood home.

As one of her first assignments, Texas Ranger Bobbie Hunt goes undercover as a tutor for 10-year-old Nicky Matacio -- in the hopes of capturing the boy's mobster father and returning Nicky to his mother.

Claiming an overload of taxing cases, Trivette volunteers Walker and himself to work on a movie, but Walker isn't too happy about it until this seemingly easy job inadvertenly alerts the Rangers that two of the stuntment are planning a train heist similar to the one being staged for the film.

Walker, undercover to bust a casino owner's money laundering scheme, receives a blow to the head that knocks him unconscious, and he wakes up with amnesia while being dragged out of the casino by a young, female blackjack dealer.