In the years following her journey to restore Te Fiti, the heroine sets sail across the Pacific to explore new lands and bring back knowledge to her people. Accompanied by her adventurous best friend, a young navigator with ties to both the sea and sky, she discovers a mysterious island cloaked in eternal night. Upon arriving, they find an ancient civilization that has lost its ability to connect with nature and the magic that once sustained them. As they delve deeper into the island's mysteries, they realize a dark curse is at play, weakening the island’s heart and threatening their world.

Determined to help the islanders, the duo seeks out the source of the curse and encounters an old foe who has harnessed dark powers to manipulate nature for personal gain. To restore balance, they must unite the islanders, utilize their people's ancestral knowledge, and unlock new skills that connect them to the spirits of land, sea, and sky. Alongside a growing band of allies, they embark on a perilous quest through treacherous landscapes and stormy seas. As they face their greatest fears and redefine their understandings of leadership and cooperation, they learn that only through unity can they combat the forces threatening not only their world but the vast oceanic tapestry binding them all.