Alping is Snow Easy Matter.Danger Mouse and Penfold must stop Baron Greenback from using a heat ray to melt the polar ice caps to cause a flood so he can make a fortune selling inflatable boats and rubber ducks. They head to the Alps but find that Greenback's lair is blocked by a force field. They sneak in by tunneling in the snow and find themselves in a tunnel where a train knocks them to the secret lair. Danger Mouse tricks Stiletto and Penfold binds him. Danger Mouse then uses a titanium mirror to deflect Greenback's ray gun blast to destroy the lair.