One morning, Nico walks into the machine shed to find his friend Ouistiti standing on a ship that can sail and glide on ice! Good thing, too, because their next expedition will take them... to the North Pole! They will spend a night in an igloo, see the beautiful northern lights, meet polar bears, foxes, arctic rabbits, an Inuit boy, a wise old walrus, and even penguin ice sculptors who find themselves in hot water as the ice pack starts to melt...