National Geographic TV special follows elephant keeper Charlie Gray in Canada, bat keeper Sue Barnard in Georgia, big cat keeper Jack Castor in California, former zookeeper Margaret Cook searching for those animals she raised as babies who were sold by the zoo to private owners, Texas zookeeper Michele Whitehouse, zookeeper Tony Garel in Belize, endangered snail keeper Quentin Bloxam in the Bailiwick of Jersey, SeaWorld orca whale keeper Sharon Veitz, rhinoceros keeper Andy Lodge, and rhinoceros sanctuary founder Anna Merz.