Digimon Tamers: The Adventurers' Battle (デジモンテイマーズ 冒険者たちの戦い, Dejimon Teimāzu Boukensha-tachi no Tatakai) is the fifth Digimon movie and is the first movie of Digimon Tamers (Dub: Battle of the Adventurers). It premiered on July 14, 2001 alongside Mo~tto! Ojamajo Doremi: The Secret of the Frog Stone (も～っと！おジャ魔女どれみ かえる石のひみつ, Mo~tto! Ojamajou Doremi Kaeru Seki no Himitsu) and Kinnikuman Nisei second generations (キン肉マンＩＩ世 ｓｅｃｏｎｄ ｇｅｎｅｒａｔｉｏｎｓ, Kinnikuman Nisei sekando jenerēshonzu) as part of the 2001 Summer Toei Anime Fair.
||Archelomon, Baromon, Depthmon, Mantaraymon, Pipismon, Ponchomon, Pteranomon, Sepikmon, Tylomon
||Anomalocarimon, Hangyomon, Mephismon
||Apocalymon, Gulfmon, Omegamon
In a digital space, Omegamon pursues a renegade Mephismon formed from the remnants of an Apocalymon. The two exchange fire, but Mephismon escapes to another dimension before Omegamon can stop him or follow.
In the real world, Takato is packing to visit his cousin Kai in Okinawa for the summer, something he's not overly happy about; he sneaks Guilmon along with him in his suitcase. He meets up with Jianliang and Terriermon, who are travelling to the ruins of Yonaguni via Okinawa, and Culumon follows them. Ruki and Renamon stay behind in Tokyo. Upon arriving in Okinawa, Jianliang takes a transfer flight to his destination, leaving Takato behind. At the airport, Takato encounters Kai as well as Tamashiro, the creator of the V-Pet simulated digital lifeform.
There, Takato and the others save Minami, a young girl who was being chased by wild Digimon. At the same time Ruki and Renamon were also fighting Digimon. It turned out that Minami was running away from VP Laboratories. Minami's dad was a programmer for VP Laboratories and the creator of V Pet. The original V Pet program was on Minami's computer. It was decided that for the time being Minami would stay at Kai's house. But Digimon attacked her again. Takato stood up against the onslaught of Digimon. During the fight, a Digimon appeared from Minami's computer, Shiisamon. In order to protect Minami, Shiisamon fought side by side with Guilmon. But Minami was abducted by other Digimon. Then V Pets began to cause problems on computers. In order to rescue Minami, Takato and the others headed to VP Laboratories. They manage to rescue Minami and her father. But then the president of VP Laboratories blocked their way. The president was really Mephismon! Suddenly, Omegamon appears and sends Ruki and Jenrya to VP Labatories as well. Mephismon's power caused Shiisamon to turn back into Labramon. Takato and Growmon continue to fight against Mephismon, but they were no match for him! But Ruki and Jenrya arrive just on time and the three Tamers joined their strength to stand against Mephismon. But it was a losing battle. Minami accidentally said the keyword to the vaccine program built into Labramon and deleted the virus. It looked as if Mephismon had been defeated but he evolved into Gulfmon and began attacking once again! Growmon and the others evolved to Perfect and the three Perfect Digimon concentrated their strength and finally managed to defeat Gulfmon.
- A scene with Takato, Kai, and Guilmon spearfishing was removed for time constraints.
- The film used the soundrack from the Digimon Frontier dub.