Barry´s class is off to Mogden City for a day trip round the sewers. When Bazza hears they´re filming an episode of Future Ratboy just down the road from the poo factory, he hatches an escape plan. But Mogden City is a dangerous place, and when night starts to fall and they still haven´t found the set, panic sets in . . . Join everyone´s favourite Loser on his ninth hilarious adventure