Deep in Alaska, the primal way lives on. Fight the freeze, brave the wild, hold on to your sanity. And winter is no wonderland when temperatures plummet far below zero. This series follows the drama and hardships experienced by Alaskan households in different corners of this merciless territory as they battle to survive, thrive, and live life on their own terms.

Simon explores the Pacific Ocean's spectacular Coral Triangle, Africa's vast Congo Rainforest, the sweeping Kalahari desert, and the awe-inspiring landscape of Patagonia.

Can they face their fears? Celebrities take on epic adventures and freezing temperatures with Iceman Wim Hof. He'll push their minds to the limit - will he change their lives?

Saleyha and Michael run experiments on gut bacteria. Chris investigates whether red wine lives up to its healthy reputation, and whether decaffeinated coffee might be bad for us. Gabriel follows the story of a man having the first 3-d printed sternum implant in the UK. Saleyha reveals how to help someone having an asthma attack. Zoe finds out why sleeping less makes you eat more.

Professor Brian Cox explores planets and moons erupting with fire and ice.

Ben Fogle travels round the world to visit people who have given up the rat race.

Deep in Alaska, the primal way lives on. Fight the freeze, brave the wild, hold on to your sanity. And winter is no wonderland when temperatures plummet far below zero. This series follows the drama and hardships experienced by Alaskan households in different corners of this merciless territory as they battle to survive, thrive, and live life on their own terms.

Simon explores the Pacific Ocean's spectacular Coral Triangle, Africa's vast Congo Rainforest, the sweeping Kalahari desert, and the awe-inspiring landscape of Patagonia.

Wildlife presenter Steve Backshall tracks down 60 of the world's deadliest animals.

Gregg Wallace and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines. What are the secrets behind our supermarket staples?