In this fourth installment of the Superloo series, Finn and his reluctant human helper are transported back to Victorian England to rescue the magnificent musical 1812 Overture Toilet, designed by the great Sir Walter Closet. Along the way, they encounter slums, evil factory owners, and a great deal about Victorian potties. Finn gets stuck in a chimney while Superloo ends up at the bottom of the river, but nothing stops our heroes when there's a toilet in peril!