A loner mammoth, a goofy sloth, and a cunning saber-toothed tiger reluctantly join forces to return a lost human infant to his tribe, all while being hunted by a pack of saber-toothed tigers.
Riley is now entering her first year of college, where she struggles with becoming an adult. With this, we see the birth of new emotions in her head… Who also try to fit in with the emotions we’ve come to know.