The first episode provides an overview of all five types of primates and the threats they face. Close contact and interactions with these great apes shows how they differ from other primates, and highlights their often-surprising levels of intelligence.
Holly Carroll travels to the Virunga Volcano Chain, which spans Uganda, Rwanda and the Democratic Republic of the Congo. The only three countries in the world where mountain gorillas live.
Conservationist Holly Carroll traces the preservation efforts to reintroduce wild-born, ex-captive orangutans back into the wild - one of the most endangered great apes of all.
Holly Carroll travels to a remote forest in the Congo where the bonobo apes live, a species so rare and endangered most people have never even heard of them.