The celebrities are challenged to jump from the deck of a trawler into the freezing Arctic water, before swimming to the shore as quickly as possible, with the prize of a luxury food package at stake. The next morning the teams must abseil head-first down a sheer cliff 300m high and trek through deep snow to the finish line, but with one contestant nursing an injury and another already feeling the pace, the vote-off proves tense. Presented by Paddy McGuinness and Charlotte Jackson.