Meet Rotundraloo, the friendly gourmet monster made from London's fat berg! As Rotundraloo grows, the drainpipes under London begin to clog. Danger looms as the greasy disaster backs up and explodes all over London. It's up to the brave sewer workers to blast Rotundraloo away and save the day. A hilarious tale of teamwork and triumph in the face of a monstrous mess.