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.

Michael looks at advances at the frontier of medicine that are attempting to turn back the clock on ageing. He starts in Tel Aviv, where he tries some Hyperbaric Oxygen Therapy.

Steve Backshall is on a mission to create a new generation of shark saviours, assembling a team of ordinary children to undertake a boot camp at a shark sanctuary in the Bahamas where they'll learn how to interact with sharks.

Follow a cast of savannah animals throughout one year to see the drama of the area's distinctive wildlife up close. Experience the love, loss, tragedy, and triumph as their stories unfold in the heart of this legendary land.