Aloha, Scooby-Doo!

Plot

Mystery Inc. gets a complimentary Hawaiian vacation from Goha Aloha, a surf-and-beachwear company that wants Daphne Blake to create new swimsuit designs. When they arrive, they meet Jared Moon, a company representative, and hear about the Big Kahuna of Hanahuna surfing competition. This contest was once limited to native Hawaiians, but the mayor opened it to outsiders, which upset local surfer Manu Tuiama and his friend Little Jim. Manu claims the ancient Wiki-Tiki spirit sent demons to attack his village and take his girlfriend Snookie as punishment for the mayor’s decision and because real estate agent Ruben Laluna built homes on sacred land.

While looking into the attacks, the gang and Manu visit Auntie Mahina, a jungle shaman, but Manu seems to be taken by the Wiki-Tiki along the way. Mahina explains that the Wiki-Tiki is furious because the contest is a Hawaiian ritual that requires a Hawaiian winner, and she tells them to go to a nearby volcano or else Manu and Snookie will be sacrificed. Before they leave, she gives Fred Jones a necklace made with bola gawana root extract, which she says will protect against the monster.

At the volcano, the gang finds Snookie, but the Wiki-Tiki grabs her again, and the necklace has no effect. After escaping, they discover the demons are actually remote-controlled robots, and a photo shows the Wiki-Tiki using a Goha Aloha surfboard. The next day, Daphne joins the surfing contest to draw out the monster. With help from Shaggy and Scooby, she defeats it, and the gang reveals the Wiki-Tiki is Manu.

He and Snookie worked together to frighten locals and tourists so they could buy up properties and sell them at higher prices. Snookie, a rocket science and robotics expert, built the robots. The two are arrested, and Scooby is named the new Big Kahuna of Hanahuna before the group celebrates at a luau.