Two men are on the moon and they're stranded and one of them murders the other and dumps the body into outer space. He's rescued, but lives his next forty years in shame because no one caught on to him yet. This leads him to become increasingly distant with his family, until one day he up and leaves them. He spends his life jumping off high trees to get to the moon, each time getting hurt severely. His final stunt propels him from a slingshot into a racecar, and he becomes a racer in the hopes that he can go so fast that he travels through time and gets back on the moon.
You and the Pokemon you chose are part of his pit crew.