Thomson takes you to the Masai Mara in Kenya for the Great Migration. Over one million wildebeest and zebra travel north to graze on the Mara plains. They risk attack from huge crocodiles as they cross the Mara river. The book includes images of the big cats: cheetah, leopards, and lions. In addition there are color and black and white photos of zebra and elephants. Thomson includes detail close up portraits as well as landscapes that include the animals in their habitat.