Aloha Scooby-Doo!

Mystery Inc. arrives in Hawaii after Goha Aloha offers a free trip and a potential swimwear line for Daphne. The team is excited by the sun-soaked setting and the chance to design something bold. They begin to sense that the assignment might be more than a simple promotional stunt.

Jared Moon, the Goha Aloha representative, explains the contest prize and the town's festive atmosphere. The gang learns the event doubles as a test of who should lead the revived Big Kahuna competition. The promise of opportunity in a paradise sets the tone for the mystery ahead.

Locals protest the mayor's plan to open the Big Kahuna contest to mainland competitors. Manu Tuiama and Little Jim lead the opposition, arguing that tradition and land rights are at stake. The controversy foreshadows a deeper scheme threading through the island's culture and economy.

The gang ventures into the jungle to meet Auntie Mahina, a local shaman who warns that the Wiki-Tiki ritual must honor heritage. She hints at danger looming if the ceremony is exploited for greed. She urges caution and points the team toward the volcano to prevent a potential sacrifice.

Before leaving, Auntie Mahina entrusts Fred with a bola gawana root necklace meant to ward off the Wiki-Tiki's demons. The scene blends mysticism with a practical plan to protect the group. The necklace becomes a symbolic safeguard as they proceed toward the volcano.

The route into the lush hinterlands tests the team's resolve as treacherous terrain and hidden threats appear. They push forward to uncover clues about the Wiki-Tiki and the island's unrest. The journey tightens the crew as clues begin to converge.

The gang locates Snookie only to find her recaptured by the Wiki-Tiki and seemingly impervious to the protective necklace. The attackers' success reveals that the danger is manufactured and not a supernatural force. The tension spikes as the mystery deepens.

A critical twist reveals that the Wiki-Tiki demons are not real monsters but remotely controlled robots. The fear and chaos are orchestrated to manipulate the public and inflate property values. The investigation shifts from legend to scheme with a clear target: greed masked as tradition.

A Goha Aloha-branded surfboard bearing a Wiki-Tiki photo ties the scheme directly to the invited company. The evidence implicates Goha Aloha in orchestrating the fear for profit. The team connects the dots between advertising, real estate, and the manipulation of public sentiment.

Daphne bravely competes in the Big Kahuna Surfing Contest, hoping to lure the robo-demons into a controlled setting. Shaggy and Scooby stand ready to assist as Mystery Inc. moves from observation to intervention. The event becomes the stage for exposing the criminals and proving the truth behind the legend.

Manu's collusion with Snookie is uncovered; Snookie reveals herself as the mastermind engineer behind the robots. The community learns the deception used to scare locals and raise land values. The reveal pivots the investigation toward stopping the real criminals and protecting the island's heritage.

Manu and Snookie are arrested, ending the scheme and restoring trust in the island's traditions. The locals reclaim ownership of their land and future, free from manipulation. The Mystery Inc crew wraps up the case with a sense of justice and community.

In a lighthearted twist, Scooby-Doo is celebrated as the new Big Kahuna, bringing humor and warmth to the closing luau. The team reflects on the journey from paradise to peril and back to unity. The luau ceremony seals the newfound balance between tradition and progress.

Locals and visitors toast safety, culture, and resilience at a festive luau. Velma, Shaggy, and Scooby reinforce their role as guardians of the island's heritage through careful listening and teamwork. The island's community begins to heal as the dust settles.