Survival expert Ray Mears begins his adventures on the eastern shore of Lake Eyasi in Tanzania, home to the Hadza people - one of only a handful of hunter-gatherer tribes in the world. He joins them on a hunt, marvelling at their skilful use of 5ft longbows and poisoned arrows

Global expeditions with the survival expert, who meets the nomads of western Mongolia. These tough and resilient tribes live at an average altitude of 5,000ft and are superb horse riders and herdsmen, as they demonstrate to Ray before inviting him to take part in a traditional wrestling challenge

Wilderness expert Ray Mears travels to the heart of the Amazonian rainforest to meet the Sanema tribe. Incredibly, he finds their lifestyle has barely changed over 10,000 years as they have learnt how best to exploit natural resources. Virola tree resin is extracted to tip arrowheads for catching game and making its bark into a hallucinogenic snuff to be used in shamanistic rituals

Ray learns the finer points of fishing in Labrador, northern Canada, and visits the native Innu people at a winter hunting camp where porcupine figures high on the menu and the brains of unfortunate caribou are used to tan their hides for buckskin

The survival expert ventures into the Central Australian Desert to meet a tribal elder of the Aboriginal people and learn about their unusual navigation methods. He also picks up some nutritional tips, dining on a mixed diet of emu, grubs and ants