In the first episode of the four-part adventure "Warriors' Gate," the Doctor (Tom Baker), Romana (Lalla Ward), and Adric (Matthew Waterhouse) continue their efforts to escape E-Space and return to Gallifrey. En route, the TARDIS is trapped in the void near the stone gateway between E-Space and N-Space. Also imprisoned in this void is a ship full of time-sensitive Tharil slaves, captained by the ruthless Rorvik (Clifford Rose). Written by Steve Gallagher, "Warrior's Gate, Episode 1" first aired on January 3, 1981. ~ Hal Erickson, Rovi