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.
Unfortunately the movie The Land Before Time IX: Journey to Big Water is not yet available on HBO Max.
| Art | Micki Zurcher | Background Designer |
| Directing | Charles Grosvenor | Director |
| Writing | Judy Freudberg | Characters |
| Writing | Tony Geiss | Characters |
| Production | Charles Grosvenor | Producer |
| Sound | Michael Tavera | Original Music Composer |
| Editing | Jay Bixsen | Editor |
| Production | Susan Blu | Casting |
| Art | Flamarion Ferreira | Art Direction |
| Writing | Dev Ross | Writer |
| Production | Daniel J. Wiley | Associate Producer |
| Production | Steve Chen | Supervising Producer |
| Production | James Wang | Executive Producer |
| Sound | Michele Brourman | Songs |
| Sound | Amanda McBroom | Songs |
