After a six-day outer space adventure that leaves them on the verge of psychological collapse, Rick and Morty decide to spend some time at an alien spa, where they use a machine that extracts a person's negative personality traits. However, without Rick and Morty knowing, those traits are transposed into toxic physical counterparts, characterized by Rick's arrogance and Morty's self-loathing. On the other hand, the Clean Rick becomes more considerate, and Clean Morty's confidence soars, which allows him to start dating girls.