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.
Movie tag line: "Tagline Not Available"
Production companies:
Character: Narrator / Cera's Dad (voice)
Character: Grandpa (voice)
Character: Diplodocus Mom / Grandma (voice)
Character: Littlefoot (voice)
Character: Cera (voice)
Character: Ducky (voice)
Character: Spike / Mo (voice)
Character: Ducky's Mom / Petrie's Mom (voice)
Character: Petrie (voice)