Moana (Catherine Laga'aia) grows up on the island of Motunui, where she spends a happy childhood. As a teenager, however, she senses that this can't be all there is – that her destiny lies beyond her homeland. When resources on Motunui mysteriously begin to run low, Moana makes a decision: she'll follow the call of the ocean and venture out onto the open sea. She knows what she must do to save her people, thanks to her loving and wise grandmother (Rena Owen): she must find the shape-shifting demigod Maui (Dwayne Johnson). In fact, she succeeds in doing so soon enough – but that's only the beginning of her adventure.