Charley Maplewood has never been one for parties— that would require friends, which he doesn't have. But now that he's turning ten—the big oneoh— he decides to throw a birthday party for himself. Of course things don't work out as he plans. In trying to make friends, he ends up inviting the class bully, and that's before he ruins the cake and sets the garage on fire. Will Charley be able to pull it together before the big one-oh . . . becomes the big OH-NO?