The Super Mario Bros. Super Show! - On Her Majesty's Sewer Service

Seizoen: 1 - Aflevering: 22 / 22 - Eerst uitgezonden: 10 oktober 1989 - Episode ID: 598999

When Koopa turns Secret Agent James Blonde to stone, the Marios are selected as his temporary replacements. Their first assignent is to stop Koopa from robbing Fort Hard Knocks, but they end up getting captured, and taken to Koopa's hideout.