After ten years of not speaking to each other, Scrooge McDuck and his nephew, Donald Duck, reunite when Donald needs help caring for his nephews, Huey, Dewey, and Louie. The boys can&t believe they get to meet the richest duck in the world, and are even more thrilled when they realize he is actually their estranged uncle! With the help of Webby Vanderquack, Huey, Dewey, and Louie rekindle Scrooge's sense of adventure and embark on the quest of a lifetime to the Lost City of Atlantis.