"Inspired by an incredible true story... begins in 1940 when seven prisoners attempt the impossible: escape from a brutal Siberian gulag. Thus begins a treacherous 4,500-mile trek to freedom across the world's most merciless landscapes. They have little food and few supplies. They don't know or trust each other. But together, they must withstand nature at its most extreme. Their humanity is further tested when they meet a teenage runaway who begs...