Ant Middleton gets trapped in an unexpected, life-threatening storm as he attempts to climb Everest; the adventurer seeks to understand the attraction of such a popular but dangerous challenge.

Hitman Rob Shaw travels to a remote location after a distress call from his ex-wife. Upon arrival, he is met by his estranged father Jim, an ex-director of the Ministry of Defence, his ex-wife, her new husband and Rob’s two young daughters. Jim explains that a global nuclear event is imminent and invites Rob to join them in a bunker beneath the house. Rob rejects the invitation and attempts to leave just as the bombs begin to fall - he has no place or purpose in this new reality. However, when an anarchic gang of ex-soldiers take control of the bunker, his skills and dangerous mindset become the very thing the family needs.

Former Special Forces soldier Ant Middleton invites pop star Liam Payne to take part in the journey - and interview - of a lifetime in Namibia.