Faced with an inevitable, melting demise, the Last of the Snowmen laments his fate. But when he spies Courage and his owners, inexplicably on vacation in the Arctic, he plots to sap them of their anti-melting gene to stave off his own destruction. Inadvertently hatched by Eustace, a tiny duckling mistakes him for its mother and quickly grows fiercely protective. The duckling soon becomes jealous of Muriel. Sensing its fatally intentions upon her, Courage battles the duckling for the safety of his owner.