Doctor Who Season 23 Episode 11
A course change that takes the Hyperion III closer to a black hole could prove unwise when there are so many aboard ship with hidden agendas. Disappearances continue, a murderer remains at large, and one person finally crumbles under the strain of harboring a guilty secret.
Serie: Doctor Who
Episode Title: The Trial of a Time Lord, Part Eleven
Air Date: 1986-11-15