Sean McDuck is forever causing mischief and scaring the hapless gulls, much to his friend Puffy’s dismay. Today is Fly South for the Winter Day, but the duck can’t resist goofing off scaring gulls along the way. In doing so he becomes separated from his family in some cloud cover, where he has a close encounter with an airplane and falls to the ground, breaking his wing. His distraught mother, believing that the fox has eaten him, flies off without him. A lost and stranded Sean is befriended by a water vole, who teaches him how to survive the winter before he starts his hibernation. The duck puts what he learns to use to make sure that he and also stranded friend Puffy, survive the harshness of the winter ahead.