Six months after the D-Reaper was destroyed, the Tamers are planning to throw Rika a surprise party, but Rika finds out. Suddenly a train-Digimon named Locomon begins to race around the tracks, causing havoc. The Tamers respond to this, as Takato digivolves Guilmon into Growlmon to stop the train Digimon but fails as Takato, Rika and Renamon get on it in an attempt to slow it down. The others, excluding Suzie, use a freight train to catch up with Locomon
Unfortunately the movie Digimon Tamers: Runaway Locomon is not yet available on HBO Max.
| Writing | Akiyoshi Hongo | Screenplay |
| Writing | Hiro Masaki | Screenplay |
| Directing | Tetsuharu Nakamura | Director |
| Visual Effects | Sushio | Key Animation |
| Visual Effects | Akiko Seki | Key Animation |
| Visual Effects | Akira Hosogaya | Key Animation |
| Visual Effects | Satoshi Hattori | Key Animation |
| Visual Effects | Hideto Fujiki | Key Animation |
| Visual Effects | Masaki Inada | Key Animation |
| Visual Effects | Yoshinori Yumoto | Key Animation |
| Visual Effects | Hitoshi Saiku | Key Animation |
| Visual Effects | Hiroyuki Notake | Key Animation |
| Visual Effects | Tsutomu Suzuki | Key Animation |
| Visual Effects | Yoshiaki Mizuno | Key Animation |
| Visual Effects | Koji Watanabe | Key Animation |
| Visual Effects | Yukako Tsuzuki | Key Animation |
| Visual Effects | Chikashi Kubota | Key Animation |
| Visual Effects | Koichi Usami | Key Animation |
| Visual Effects | Yasuhiko Oyama | Key Animation |
| Visual Effects | Shuichi Iijima | Key Animation |
| Visual Effects | Jun Nakai | Key Animation |
| Visual Effects | Shinsuke Ishikawa | Key Animation |
| Visual Effects | Yuuji Ikeda | Key Animation |
| Visual Effects | Tsutomu Kikuchi | Key Animation |
| Visual Effects | Ritsuko Watanabe | Key Animation |
| Visual Effects | Yoshitaka Yashima | Key Animation |
| Visual Effects | Takenori Tsukuma | Key Animation |
| Visual Effects | Shuichi Ito | Key Animation |
| Visual Effects | Fujio Oda | Key Animation |
| Visual Effects | Hideki Ito | Key Animation |
| Visual Effects | Keiko Yamamoto | Key Animation |
| Visual Effects | Masahiro Andoh | Key Animation |
| Writing | Akiyoshi Hongo | Original Story |
