Zack Freeman is ready to tell his story. The story of a boy, his runaway bum and some of the most dangerous bums in the world including kamikaze bums; nuclear bums; and Stenchgantor, the Great Unwiped Bum. With the help of The B-team (a crack bum-fighting unit comprising three of the best bum-fighters in the business: the Kicker, the Smacker and the Kisser), Zack will risk methane madness crossing the Great Windy Desert, death by stink-bog in the Brown Forest, and the perils of the Sea of Bums before finally descending into the heart of an explosive bumcano to confront the most psycho bum of them all–His own!