by Hal Erickson
synopsis
In the conclusion of the four-part story "The Pirate Planet," the Doctor (Tom Baker) tries to free the planet Calufrax from the grip of a band of space pirates, who are using their own planet to suck the life-forces from other world. Unless the Doctor succeeds, the second segment of the Key to Time will be forever lost -- and with it, the universal balance between Good and Evil. But in rescuing Calufrax, the Doctor may also be destroying his ability to locate the Key's remaining elements. Written by Douglas Adams, "The Pirate Planet, Episode 3" first aired on October 14, 1978.