It is Halloween night in Hawaii, or Hallowaiian, as it’s locally known, so excitement and mischief are in the air. While surfing on a local beach at sunset, our three young heroes, Kai, Leilani, and Eddie, uncover a mysterious idol they find in an underwater cave.
Disbelieving his grandfather’s warnings, Kai and his friends quickly discover that they’ve unleashed an ancient evil being upon the island. Things get stranger than usual on this Hallowaiian night as a giant pineapple-headed monster is let loose onto the unsuspecting town of Hilo.
Our young friends find help from ancient mystical creatures, the Menehune, though there is only one thing that can truly defeat Pineapplehead – Kai, with help from Leilani and Eddie, must uncover his heritage, and believe the ancient stories of his ancestors in order to vanquish this evil, and save his friends, family, and home.