At a remote construction site in Latin America, an American developer named Jekhide attempts to build a resort, however, the site is attacked by a mysterious force, causing several workers to get trapped underground. One of the worker's daughters Mia has a premonition. So after saying a few words of parting at her mother's grave, she sets out on a journey across mountains and jungles to search for her father. She goes to a witch who shows her the way and along the way she meets and befriends a tribe of giant ape-like creatures called the Migoos.