The Sarah Jane Adventures - Season 1 Episode 6

Eluding Kudlak, Sarah Jane discovers from her computer Mr. Smith that Kudlak is from the Uvodni race, sent to Earth to recruit warriors in his peoples' fight against the rival Malakh. Clyde and Luke are amongst the recruits on a ship travelling to Kudlak's planet but Sarah Jane manages to teleport herself and Maria onto the ship, where they see the Mistress, a computer whose orders Kudlak obeys.In fact the war with the Malakh ended years earlier and the Uvodni leader told the Mistress this but 'she' was not programmed to recognize peace and has maintained the conscription. On learning this Kudlak destroys the computer and releases his captives back to Earth.