Alaska's Grizzly Gauntlet

Survivalist Les Stroud embeds himself in the Alaskan wild for a close-up look at the highly-intelligent black bear. (S1, ep 1) U

Survivalist Les Stroud tracks Alaska's moose in the run-up to mating season. But he will need to be careful - the moose is America's deadliest land mammal. (S1, ep 2) U

Les fights to keep up with the great Arctic Alaskan caribou herd as they race across the icy tundra on one of the natural world's longest land migrations (S1, ep 3) 7+

Survivalist Les Stroud heads to the edge of the Alaskan Arctic to find out how polar bears are being forced to adapt to their dramatically changing environment. (4 of 5) 7+

Survivalist Les Stroud gets up close and personal with the biggest brown bears of them all as they race to ready themselves for their long hibernation. (5 of 5) 7+