While crossing the burnt wasteland, they are attacked by a pack of "Velociraptors". They escape by joining a multi-species herd of dinosaur refugees heading for the communal Nesting Grounds. Falling afoul of herd leader Kron, they retreat to the end of the line and befriend the old "Styracosaurus" Eema, her pet "Ankylosaurus" Url, and her equally elderly friend Baylene, the only "Brachiosaurus" in the group. They travel for days without water to the site of a lake, only to find it seemingly dried up. Kron orders the herd to move on and let the weakest perish, but Aladar stays behind with a sick Eema. He and Baylene dig until they find her some water. The rest of the herd follows suit, and Kron's sister Neera, impressed by Aladar's compassion, begins to grow closer to him, while Kron believes he wants to take over.