Alaska. It covers an area larger than Britain and France combined, yet Alaska has a population smaller than Bristol. Although a stranded stranger's chances of survival, or even rescue, are slim, extraordinary tales have emerged. Mears visits "the Last Frontier" to recount the miraculous stories of a steamship that ran aground in 1910, and a float-plane pilot who crashed in one of Alaska's freezing lakes. Director Ben Southwell ; Series producer Dick Cotthurst
Repeated with sign language next Tuesday on BBC1