In his most challenging journey to date, Palin tackles the Himalayas, the greatest mountain range on earth. It is a virtually unbroken wall of rock stretching 1800 miles from the borders of Afghanistan to south-west China. Penetrated but never conquered, it remains the world's most majestic natural barrier, a magnificent wilderness that shapes the history and politics of Asia to this day. Having previously risen to the challenge of seas, poles, dhows and deserts, the highest mountains in the world were a natural target for Michael Palin. In a journey rarely, if ever, attempted before, in 6 months of hard travelling Palin takes on the full length of the Himalaya including the Khyber Pass, the hidden valleys of the Hindu Kush, ancient cities like Peshawar and Lahore, the mighty peaks of K2, Annapurna and Everest, the bleak and barren plateau of Tibet, the gorges of the Yangtze, the tribal lands of the Indo-Burmese border and the vast Brahmaputra delta in Bangladesh. He also passes through political flashpoints including Pakistan's remote north-west frontier, terrorist-torn Kashmir and the mountains of Nagaland..