The Spy Creatures travel to the lands of ice and snow beyond the Arctic and Antarctic circles, observing the hardiest and most charismatic animals in the polar world.

The spy creatures explore the islands of the southern seas. Some of the most unique animals on earth have evolved in these isolated places, far from any mainland.

The Spy Creatures travel to the temperate lands north of the tropics where life is governed by the rhythm of the seasons.

In the spectacular snow-covered mountains of Japan, Spy Macaque records how snow monkeys bathe and socialise at steaming hot thermal pools. In the cool mountains of Mexico, Spy Hummingbird takes us into the heart of what must be the world's most beautiful natural gathering as billions of spectacular monarch butterflies overwinter. In Manitoba in Canada, Spy Snake takes us on journey inside the moving masses of male garter snakes to discover an imposter in their ranks - a male pretending to be a female. Spy Bear, Spy Bald Eagle and Spy Salmon reveal how grizzly bears and bald eagles gather in Alaska to await one of nature's most spectacular feasts - the arrival of thousands of sockeye salmon returning from the sea to spawn. And closer to home, as autumn arrives in England, Spy Squirrel witnesses first-hand how grey squirrels find and bury food each year for the winter, remembering the locations of up to 4000 nuts. Spy Squirrel also becomes caught up in a fight between rival stags as they fight over females. Could this be its last assignment?

Our Spy Creatures investigate the extraordinary wildlife that thrives in the tropics and the events and gatherings that happen across the year.

For the first time, our Spy Creatures record how gorillas sing when they are enjoying their meals, and in a comical moment they experience the noisy after-effects of their vegetarian diet. In Brazil, Spy Jaguar Cub explores a beautiful gathering of water birds, capybara and caiman, and joins Spy Caiman to film a feeding frenzy as its wild counterparts go fishing. In Costa Rica, Spy Turtle and Spy Vulture gain an insider's view of the spectacular turtle arribada as thousands jostle for a place on the beach to lay their eggs. In Zambia, Spy Hippo takes us into the heart of a hippo pod, and is too close for comfort as it films a dramatic fight.

Spy Dolphin and a host of other Spy Creatures, such as Spy Monkey, Spy Sloth and Spy Macaw, take us into the mysterious world of the Amazon's flooded forest, and in northern Australia, Spy Bat becomes immersed in a nursery of little red flying foxes and joins them on the wing as they risk getting snapped up by hungry freshwater crocodiles. Spy Orangutan returns to Borneo to investigate the extraordinary bulbous-nosed proboscis monkey and some curious orangutans. In incredible scenes, Spy Baby Elephant uncovers the secret world of pygmy forest elephants, and in a thrilling finale, Spy Penguin and Spy Seal join Humboldt penguins as they bravely navigate thousands of angry sea lions as they try to return to their hungry chicks.