If you thought the children on "Kid Nation" behaved like a bunch of wild apes, check out the cast of this very different reality series: a group of orphaned orangutans, who gleefully cut loose in a Borneo river sanctuary that may be the last refuge for their species. As Indonesian developers continue to grab up much of the wilderness around them, these plucky, intelligent animals must find a way to form a cohesive social group and fend off encroaching invaders from a nearby island.