After a life of being evil, a pony wishes to purge himself of his actions. He falls asleep on afternoon, but finds himself trapped within his mind. Confronted with the problem of escape, he realizes that he must clean things up in his mind before he may leave. The problem with this is that all of his malevolent emotions and memories have taken a physical form, with which he must fight. Failure means insanity and suicide, while victory means freedom and happiness, ridding himself of his previous life, and the beginning of a new life of benevolence.