In "", Lister discovers Holly's back-up personality disc and uses it to reactivate him, but the 'new' Holly, although once again smart, begins steps to destroy the ship as he concludes it is no longer fulfilling a worthwhile function for the company. Temporarily retreating to Starbug, the crew are eventually able to trick the new Holly into downloading the experiences of the original from the "Red Dwarf" archives, which restores his senility but also his old personality, prompting him to help them reclaim the ship from the rogue Cats.