Arlo is the main protagonist of the 2015 Disney•Pixar animated feature film The Good Dinosaur. He is a young Apatosaurus living with his parents and older siblings.
After saving all toons, Chip and Dale find out about a war between 3D and 2D toons, and that Gorefield is trying to kill everyone, now they must team up with Peter Pan to stop him, it's gonna be a full war.