In the third episode of the four-part story "Warrior's Gate," the void separating E-Space from N-Space is rapidly shrinking. Aware of this disturbing phenomenon, the Doctor (
Tom Baker) tries to convince pirate captain Rorvik (Clifford Rose) that the crews of the TARDIS and Rorvik's slave ship must work together if they want to survive. Rorvik is concerned only with his own safety, and he doesn't care how many innocent souls must die in order to secure his escape from the void. Written by Steve Gallagher, "Warrior's Gate, Episode 3" first aired on January 17, 1981. ~ Hal Erickson, All Movie Guide