Kryten notices that Legion loses a persona when one of them is unconscious, and so convinces the others to be knocked out, forcing Legion to manifest his persona only. Legion admits relief when this happens, wishing not to share their assorted neuroses, and helps Kryten to return the crew to "Starbug", providing them with a stardrive that the scientists had created to help them catch up to "Red Dwarf". However, when the crew attempt to use it, the drive shoots out of the ship, leaving them to struggle with the sudden decompression it creates.