As far as Diego, the saber-toothed tiger, is concerned, mammoths and sloths are good for only one thing -- dinner. At least that's what he thinks of Manny. the mammoth, and Sid, the sloth, at the beginning of his journey. But after traveling with them to return the human baby, Roshan, to his family, Diego begins to have a change of heart.Is it possible that Diego will start to think of Manny, Sid, and Roshan as his new herd? Can the saber-toothed tiger go through with his wicked plan? In this fantastic story, you'll be able to uncover events from Diego's point of view.