In this first joint extreme adventure special, Bear Grylls takes his companion through the paces of real life survival in the ice-bound mountain and glacier rangers in the far north of Sweden. Armed with only the most basic survival equipment. Grylls briefs his partner on the extreme conditions they'll have to confront over the next 48 hours....and what worse-case scenarios lie in store. Without losing his infectious sense of humour, Bear's comrade proves his mettle through a series of physically challenging skills. Together, they tandem-abseil off a helicopter, rapel down a 100ft frozen waterfall and build a shelter to stay warm overnight in sub-zero temperatures. Bear shows what it takes to find food in the icy coniferous forests, as they climb trees, improvise snow shoes from saplings, drink their own urine and even bite into reindeers eyeballs....all in the name of survival!