Aboard the S.S. Cliff, First Mate Foxy reads an interesting fact: "Lemmings don't jump off cliffs." But Foxy can't get the lemmings on the Cliff to read his book, too. They're too busy jumping off. After a chilly third rescue, exasperated Foxy and grumbly polar bear Captain PB realize their naughty nautical crew isn't being stubborn: The lemmings (Jumper, Me Too, and Ditto) can't read. And until Foxy patiently teaches his lemmings to read the book, he can't return to reading it, either.