The spy creatures infiltrate a hippo pod, a nursery of red flying foxes and the secret world of pygmy forest elephants.

The Spy Creatures travel to the temperate lands north of the tropics, where life is governed by the rhythm of the seasons. Their destinations include Japan, Mexico and Alaska.

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.