Ep 27. On Her Majesty's Sewer Service

In the On Her Majesty's Sewer Service episode of Super Mario Brothers Super Show season 1, Mario and Luigi find themselves transported to an underground sewer world where they meet a group of sewer-dwelling rebels led by Princess Toadstool's long-lost cousin, Marianne. Marianne reveals that the evil King Koopa has taken control of the underground world and is using its resources to power his latest plot to conquer the Mushroom Kingdom.

The rebel group, known as the Plumbers' Helpers, recruits Mario and Luigi to help them stop King Koopa and save the sewer world. Together, they navigate treacherous sewer passages and use their plumbing skills to thwart Koopa's schemes.

Along the way, they encounter a variety of strange creatures and obstacles, including goombas, piranha plants, and even a giant squid. Mario and Luigi also discover that Marianne has a secret weapon, an advanced plumbing device that can blast open doors and flush out enemies.

As they approach Koopa's underground lair, Mario and Luigi must use their wits and bravery to overcome the final challenges and defeat the nefarious Koopa. The action-packed episode culminates in a high-stakes battle where Mario and Luigi must outsmart Koopa's minions and save both the sewer world and the Mushroom Kingdom.

On Her Majesty's Sewer Service is a thrilling adventure filled with humor, action, and unforgettable characters. Fans of the Super Mario Brothers franchise will love this classic episode, which showcases the heroic spirit and inventive problem-solving that the beloved plumbers are known for.