[s15e17]: Underworld 1

: Stars Tom Baker as the Doctor and Louise Jameson as Leela.

: The Doctor reveals that the Minyans are "old friends" of the Time Lords. Thousands of years ago, Time Lords intervened on Minyos, but the Minyans eventually used the gifted technology for civil war, leading to the Time Lords' strict policy of non-intervention. [S15E17] Underworld 1

: The R1C is running out of power and its crew has been regenerating for centuries to survive. The episode concludes as the ship heads toward a nebula where a new planet is forming. Viewing & Production Details : Stars Tom Baker as the Doctor and Louise Jameson as Leela