Doctor Who: Survival of the Fittest (131)

1. Klein's Story by John Ainsworth and Lee Mansfield (1 part)
Elizabeth Klein is an anomaly. A renegade from an alternate future in which the Nazis won World War II. In an attempt to get to know his latest companion, the Doctor invites Klein to tell him how exactly she came to be in possession of his TARDIS and of the events that led to her trip into the past to Colditz Castle.