Overview
"The Inquisitor" is the second episode of science fiction sitcom Red Dwarf Series V and the twenty sixth in the series run. It was first broadcast on the British television channel BBC2 on 27 February 1992. It was written by Rob Grant and Doug Naylor, and directed by Juliet May and Grant Naylor. The episode's plot deals with a time travelling simulant who visits Red Dwarf to assess if they are worthy of their existence.
Plot
Arnold Rimmer, Dave Lister, Kryten and Cat find a trip out on a Starbug cut short when they are returned to Red Dwarf. The group discover it to be the work of The Inquisitor – a self-repairing simulant who survived until the end of time, concluded that, as there was no God, the only point of existence was to lead a worthwhile life and is now time-travelling throughout history to judge all, removing from existence all he has judged unworthy of existence and replacing with others who could have been conceived in their places. Each member of the group finds themselves judged by the Inquisitor through a copy of themselves, the only means of judgement that the Inquisitor deemed to be fair. While Rimmer and Cat are spared with their arguments and own low standards for their own lives, Kryten and Lister find that they have been judged to be unworthy as a result of their mechanoid programming and lack of motivation. Both find themselves removed from the time-stream. Before they are erased, a future version of Kryten arrives and amputates the Inquisitor's left hand that holds a time-manipulating gauntlet, passing it to both before he is killed, and leaving them with a cryptic clue to operating it.
Escaping from the simulant, the pair seek out their friends, but find they no longer recognise them since being removed from history. Lister attempts to convince Rimmer that he and Kryten know him and the Cat (and not to eject them from the airlock) by citing a number of embarrassing personal details about him. They also meet their un-conceived equivalents. The Inquisitor soon catches up with the pair and attempts to destroy them but inadvertently kills their replacements, allowing them to escape again partly by Lister's use of his equivalent's severed hand to open locked doors. Kryten soon works out how to use the gauntlet from the clue they received, using it to age away their restraints. Rimmer and Cat, now convinced that Lister and Kryten are friends rather than foes, are destroyed upon confronting the Inquisitor.
From Wikipedia (CC BY-SA 4.0).