Set in 1920s Peru, this is the stirring story of one man and six frogs who tried to defy the world in the greatest gamble of all. Michael Palin appears alongside Denholm Elliott, but it is the frogs - the European Tree Frog, the Italian Agile Frog, the European Marsh Frogs, the Edible Frogs and the Himalayan Sleeping Frog (to be kept in reserve) - who are the stars.