The North

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. This time, cameras follow Japanese macaques in the snow-covered mountains of Japan, as they gather at steaming hot thermal pools to bathe and socialise. Elsewhere in the cool mountains of Mexico, cameras capture a spectacular gathering of billions of monarch butterflies, and in Bavaria, Germany, Spy Beaver gains unique access to the secretive world of the beaver.