Littlefoot befriends with a mysterious, fun-loving dolphin-like creature named Mo, who is trapped in "new water" caused by heavy rain. The gang then goes on an adventure to the "big water" to bring Mo home.
John Ingle
as Narrator / Cera's Dad (voice)
Kenneth Mars
as Grandpa (voice)
Miriam Flynn
as Diplodocus Mom / Grandma (voice)
Thomas Dekker
as Littlefoot (voice)
Anndi McAfee
as Cera (voice)
Aria Noelle Curzon
as Ducky (voice)
Rob Paulsen
as Spike / Mo (voice)
Tress MacNeille
as Ducky's Mom / Petrie's Mom (voice)
Jeff Bennett
as Petrie (voice)
