Once they do, they're taken in by a far larger and greatly intimidating vessel, who get the drop on the crew when they enter; the black beret-adorned mechanoids only take Lister, Rimmer, and Cat as prisoners, however, as they warmly take in Kryten as one of their own.
As the three Kryten-ified others do menial labour for their new masters, they devise an escape plan which Rimmer foils by triggering an alarm, having had his personality completely erased by his new mechanoid programming.
Lister and Cat rush into the lower decks of the ship where they meet another group of mechanoids, but these being seen as second-class citizens to the members of the MILF due to being earlier models.
Kryten realises his mistake and refuses to join, to which the militants respond by putting him and Lister in a battle to the death, where the loser will be jettisoned into deep space.
The episode was originally titled Kryticus, referencing Spartacus, or more specifically the film of the same name, due to it sharing the theme of rebelling against enslavement.