The year is 1936 and the world has yet to be fully explored. You set out on the adventure of a lifetime to the heart of the rainforest in South America. Unfortunately, your plane has trouble and crash lands deep in the jungle. Scouting for shelter, you and the rest of the survivors find a cave. In search of food and water, you descend into the void and find the unimaginable. Beneath the surface of our planet lies another world...