An orphaned brontosaurus named Littlefoot sets off in search of the legendary Great Valley. A land of lush vegetation where the dinosaurs can thrive and live in peace. Along the way he meets four other young dinosaurs, each one a different species, and they encounter several obstacles as they learn to work together in order to survive.

Gabriel Damonas Littlefoot (voice)
Candace Hutsonas Cera (voice)
Will Ryanas Petrie (voice)
Judith Barsias Ducky (voice)
Helen Shaveras Littlefoot's Mother (voice)
Pat Hingleas Narrator / Rooter (voice)
Bill Erwinas Grandfather (voice)
Burke Byrnesas Daddy Topps (voice)
Frank Welkeras Sharptooth (voice) (uncredited)