Hidden Kingdoms

This is the story of two young animals forced to grow up fast. In Africa's savannah, a baby elephant-shrew learns how speed is the secret to survival amongst the largest animals on earth and in America, a young grasshopper mouse confronts the Wild West's deadliest creatures to stake a claim of his own.

This is the story of two tiny animals coming of age. In the wild woods of North America, a young chipmunk is gathering a vital store of nuts ahead of his first winter - in his way are ruthless rivals and giant predators. In the steaming rainforest a young Tree-shrew is forced deep into the jungle to find food. She must draw on all her intelligence and agility if she is to escape the ultimate jungle predator - a reticulated python!

The Brazilian city of Rio de Janeiro is slowly engulfing the surrounding jungle and animals that live there. Above Rio's chaotic streets, a group of tiny marmosets have left the trees and, like 'free runners', use the city's power-lines to scour the city for food and keep one step ahead of people, cars and feral cats. Far from Brazil is the futuristic neon metropolis of Tokyo. Here, a very different cast of characters is learning how to survive in the city. A formidable looking rhinoceros beetle - for his size the strongest animal in the world - is forced to fight other beetles for money.