Watch The Land Before Time VIII: The Big Freeze (2001) full movie.
Synopsis: 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.
Director: Charles Grosvenor
Writer: John Loy
Stars: John Ingle, Aria Noelle Curzon, Rob Paulsen
More infor: IMDB, Wikipedia