Rick and Morty is one of the world’s most beloved adult animations, with one particularly impactful episode changing the series forever. Rick and Morty’s weirdest storylines are often its best. Justin Roiland and Dan Harmond nailed the show’s formula — unconventional adult humor liberated completely by its animated format, enabling the dark, the sexual, the grotesque, and the sci-fi. Throughout this winning formula, the show switched tactics a few times, choosing to tell its story in different ways, in line with the changing demands and interests of the showrunners. This was very noticeable in one season 1 episode.