The story picks up several years after Moana became the Wayfinder of her people. Now a confident and experienced leader, she has successfully guided her tribe across the vast ocean, rediscovering their ancient roots and reestablishing their seafaring traditions. However, a series of mysterious events disrupt the newfound harmony. Unpredictable ocean currents, violent storms, and vanishing islands suggest that something is deeply wrong with the balance of nature.
Moana begins to suspect that the disturbance is linked to the long-forgotten legend of Kāne, the god of creation, whose slumber has been disrupted by a powerful force. To restore balance, Moana must embark on a perilous voyage beyond the edge of the known world, journeying into uncharted waters where myths and reality collide. Along the way, she reunites with her mischievous but loyal demigod friend, Maui (voiced by Dwayne Johnson), who reluctantly agrees to help despite his lingering insecurities about his past failures.
As they venture deeper into the unknown, Moana and Maui encounter awe-inspiring creatures, including a tribe of shapeshifters who guard the gateway to Kāne’s resting place. They must also confront a cunning new villain, Akamai, a rogue Wayfinder whose greed and ambition have awakened the destructive force threatening their world. Akamai seeks to harness the power of Kāne for his own purposes, putting the entire oceanic realm at risk.
The journey is not only one of external challenges but also of personal growth. Moana grapples with the weight of her responsibilities as a leader, while Maui faces his fears of being unworthy of heroism. Together, they learn that true strength comes from embracing vulnerability and working as a team.
The climax features a visually stunning and emotionally charged battle to protect Kāne’s essence and restore harmony to the ocean. Moana 3 promises a heartfelt conclusion to Moana’s trilogy, celebrating courage, unity, and the timeless bond between people and the natural world, ensuring it resonates with audiences of all ages.