When Mumble's son Erik wants to be a singer instead of a dancer like his father, they have a falling out until a problem that threatens the entire penguin colony brings them together.

Mr. Popper's Penguins is the story of a boy whose explorer father loves him but neglects him in favor of his career. Once the boy grows to sharkish real-estate wheeler-dealer manhood in NYC, he does the same thing to his wife, daughter, and son. Promised a partner position in his real-estate firm, he woos a reluctant seller to part with the Tavern on the Green. Life is going fine until his dad's final gift to him arrives. Then Mr. Popper's life changes...