Underworld

Underworld

Available on BritBox, Prime Video, Tubi TV
S15 E20: The TARDIS lands on a space craft and the Doctor is immediately recognized as a Time Lord, much to his surprise. He agrees to help the Minyans to locate their goal, a vessel known as P7E which is now at the center of an asteroid.
Starring Alan Lake, Jonathan Newth, Imogen Bickford-Smith