The Super Mario Bros. Super Show!

On Her Majesty's Sewer Service (1x22)

Data de estreia: Out 10, 1989

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.