Ziggy's UK adventures continue when he joins friends to learn about washing things. With their help, he discovers why it's best to wash an apple before eating it and why soap is really important. He also gets himself in a muddle with his favourite blanket. Meanwhile, Sportacus does an amazing Sportacus move in his airship, and Stephanie and Trixie keep clean in the kitchen. Stingy gets mixed up and thinks that it's necessary to have a bath before you eat. Sportacus also shows how to do a special move with his friends, and even Robbie Rotten shows an interest in cleaning when he tries to set a world record in his lair.