In the African savannah, a group of animals waiting for the annual flood they rely on for food and water discover the humans who have been destroying their habitats have built a dam for a leisure resort. The animals endeavor to save the delta and send a message to the humans not to interfere with nature.

Oscar, a baby chimpanzee, is enjoying his life with his mother in the jungles along the Ivory Coast. Without warning, young Oscar is orphaned during an attack from a rival group of chimpanzees. Afterward, he attempts to survive on his own, and to be accepted by the other chimps. Oscar struggles until he is adopted by the alpha male of his group.