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.
演员: Rob Paulsen
/ Thomas Dekker
/ Jeff Bennett
/ Susan Krebs
/ Kenneth Mars
/ Miriam Flynn
/ Robert Guillaume
/ 特蕾丝·麦克尼尔
/ Danny Mann
