Some children are neat. Some children are not. Ben made messes, and he never EVER tidied up.

One day, all the rubbish under Ben's bed combines to make Megamess - a walking, talking pile of trash. Together, they join forces to create the MESSIEST MESS OF ALL TIME! They mess up the town, the country and then, the entire world! Ben is having the mess of his life, until he gets sent out to sea and comes face to face with the impact of his - and everyone else's - rubbish. Maybe Megamesses aren't as fun as Ben first thought, and there comes a time where we all need to tidy up...