Natural history documentary in which spy cameras camouflaged as various creatures go `undercover" in the animal world, getting up close and personal to film their behaviour. On Christmas Island, the Spy Crab camera walks among red crabs as they march into the sea, and in Madagascar, cameras follow many of the species of chameleon that live there. Meanwhile on Seal island off the tip of South Africa, Spy Seal Pup finds itself in the midst of the 60,000 cape fur seals that have come ashore to raise their young.