Upon arriving on the island, they discover that it is a remarkable place filled with prehistoric creatures, including giant spiders, crocodiles, and a massive, talking ape named King Julien. The group soon realizes that they are not alone on the island and that they must work together to survive and find a way back home.

Loosely based on Jules Verne’s The Mysterious Island , blending it with elements of Treasure Island and Gulliver's Travels .