Pirmykštė Žemė 8. Didysis užšalimas

When the dinosaur families get trapped in a valley by an ice storm, one family of spike tail dinosaurs volunteers to leave since they consume more food than the others. Meanwhile, the young dinos and a new adult dinosaur named Mr. Thicknose, head out to bring back their friend Spike, who has left his friends to be with members of his own species.