Dimension Jump (Red Dwarf episode)

"Dimension Jump" is the sixth episode of the fourth series of the British science fiction comedy series Red Dwarf. It was first broadcast on 21 March 1991 on BBC2. The episode features the arrival of a seemingly successful and heroic alternate version of Arnold Rimmer from a parallel universe, dubbed "Ace" Rimmer.

The plot revolves around Ace Rimmer's arrival on Starbug. He is portrayed as everything Arnold Rimmer aspires to be: brave, confident, skilled, and universally liked. This contrasts sharply with the cowardly, incompetent, and often irritating qualities of the Arnold Rimmer the crew knows. Ace claims to be dimension-hopping, travelling between alternate realities in search of adventure.

As the episode progresses, it becomes clear that Ace's image of perfection is not entirely accurate. While undeniably more capable than his counterpart, Ace is revealed to have his own flaws and vulnerabilities. His "heroic" actions are often reckless and driven by a need for validation.

The episode explores themes of self-perception, the allure of alternate realities, and the importance of accepting oneself despite one's flaws. It examines how people can construct idealized versions of themselves and how those ideals often fall short in reality. Ultimately, the episode suggests that true self-acceptance lies in acknowledging imperfections rather than striving for an unattainable ideal.

"Dimension Jump" is considered a fan favorite due to its clever writing, memorable characterization of Ace Rimmer, and its exploration of deeper themes within the comedic framework of Red Dwarf. It features catchphrases associated with Ace Rimmer, like "Smoke me a kipper, I'll be back for breakfast!" which became popular among fans of the show.