PA: Viewer discretion is advised.

MICHAEL AND SARAH GIVE IN TO THEIR ATTRACTION; MAHONE RECRUITS A NEW ALLY TO TRACK DOWN THE FUGITIVES; T-BAG GETS A VISIT FROM THE WELCOME WAGON; AND ANOTHER ESCAPEE TAKES A FALL ON �PRISON BREAK� MONDAY, FEBRUARY 5, ON FOX

Michael and Sarah become more than �strangers on a train� en route to confront the President; Mahone recruits an new ally in his attempts to capture the fugitives; T-Bag puts on a happy face when the welcome wagon arrives; and a fourth escapee takes a fall in the PRISON BREAK episode �Chicago� airing Monday, Feb. 5 (8:00-9:00 PM ET/PT) on FOX. (PB-216) (TV-14 D, L, V)

Cast: Dominic Purcell as Lincoln Burrows; Wentworth Miller as Michael Scofield; Amaury Nolasco as Fernando Sucre; Wade Williams as Brad Bellick; Paul Adelstein as Special Agent Paul Kellerman; Robert Knepper as T-Bag; Rockmond Dunbar as C-Note and Sarah Wayne Callies as Dr. Sara Tancredi with William Fichtner as Special Agent Alexander Mahone.

Guest Cast: Silas Weir Mitchell as Haywire; Kaley Cuoco as Sasha; Jason Davis as Wheeler; Reggie Lee as Bill Kim; Helena Klevorn as Dede Franklin; K.K. Dodds as Susan Hollander; Quinn Wermeling as Zack Hollander; Carol Farabee as Patty Wallace; Dari Hayes as Det. Allen.