Newly orphaned Derrick is entrusted to the care of his gruff uncle Sullivan., Captain of the Wanderer. After surviving a killer typhoon on the South China Sea, and accompanied by their eccentric elderly cousin, they set off across land to discover the treasures of Central Asia. Derrick befriends a fierce Mongol warrior and must help him battle a ruthless Chinese warlord. Given a gift of priceless jade, the group is pursued into the inhospitable mountains of Tibet where they are caught between fierce mountain monks and a terrifying unnamed creature that stalks then through the snow.