Convinced his mother has been abducted by aliens, Charlie Dickens spends his nights with an eye out for UFOs, hoping to join her. After all, she said the aliens would come back for him. Charlie will admit that he doesn't have many reasons to stick around; he doesn't get along well with his father, he's constantly bullied at school and at work, and the only friend he has is his 600-pound neighbor Geoffrey, and Geoffrey's three-legged dog, Tickles.

Then Charlie meets popular, easy-going Seth, who shows him what real friendship is all about. For once, he finds himself looking around at the life he's built, rather than looking up. But sooner than he expected, Charlie has to make a decision: should he stay or should he go?