Documentary about Kusasi, the world's most famous orangutan. His rise to power was meteoric, from orphaned baby to 20 stone king of the swingers - the fearless ruler of the orangutans in the Camp Leakey sanctuary and in the wild jungles of Borneo beyond. Now 30- years-old, his power could be starting to wane, and his life takes a new direction with the arrival of a challenger for his throne.