It's about a family of four getting penguins named Captain Cook, Greta, Columbus, Victoria, Nelson, Jenny, Magellan, Adelina, Scott, Isabella, Ferdinand and Louisa. They helped the Poppers make money. When Admiral Drake the person who gave Mr. Popper Cpt Cook, comes to pick them up Mr. Popper gets to go with him to the North Pole. They went there to keep the people who stayed there company because you can't play with Polar Bears. Check out this book!