The first film, Reunion (再会 Saikai), was released in Japan on November 21, 2015, Indonesia on August 3, 2016, North America on September 15, 2016, and Germany and Austria on May 21, 2017. It was released on region-free DVD and Blu-ray in Japan on December 18, 2015, the U.S. on May 16, 2017, the UK on May 22, 2017, Australia on July 19, 2017, and Germany on August 7, 2017. The second film, Determination (決意 Ketsui), was released in Japan on March 12, 2016 as well as Germany and Austria on July 2, 2017. It was released on region-free DVD and Blu-ray in Japan on April 2, 2016, the U.S. at Anime Expo from July 1, 2017 through July 4, 2017 as well as San Diego Comic-Con from July 19, 2017 through July 23, 2017, ahead of a general release on August 15, 2017, Germany on October 9, 2017, and the UK at MCM London Comic Con from October 27, 2017 through October 29, 2017, ahead of a general release on November 6, 2017. It will be released in Australia on February 21, 2018. The third film, Confession (告白 Kokuhaku), was released in Japan on September 24, 2016, North America on July 1, 2017, and Germany and Austria on August 13, 2017. It was released on region-free DVD and Blu-ray in Japan on November 2, 2016, Germany on October 30, 2017, the U.S. on December 5, 2017, and the UK on December 18, 2017. It will be released in Australia on March 7, 2018. The fourth film, Loss (喪失 Sōshitsu), was released in Japan on February 25, 2017 and in North America on February 1, 2018. It was released on region-free DVD and Blu-ray in Japan on April 4, 2017. It will be released in North America on April 24, 2018. The fifth film, Coexistence (共生 Kyōsei), was released on September 30, 2017. It will be released in North America on May 10, 2018. It was released on region-free DVD and Blu-Ray in Japan on November 2, 2017. The final film, Future (ぼくらの未来 Bokura no Mirai), will be released in Japan on May 5, 2018 and in North America on September 20, 2018. The films are being streamed in episodic format outside Japan by Crunchyroll, Hulu, AnimeLab, and Tubi TV, while Eleven Arts and Shout! Factory are distributing the English-language films.
The films take place three years after the events of Digimon Adventure 02 and focuses on the original eight DigiDestined and their partner Digimon. A mysterious anomaly is causing distortions in the Real World and Digimon are being plagued by a virus that turns them hostile. These circumstances lead to the DigiDestined being reunited with their partner Digimon. Joined by another DigiDestined named Meiko Mochizuki and her partner Meicoomon, the DigiDestined must not only deal with the infected Digimon and the mystery behind them but also with the responsibilities and burdens of growing up.
The films are being streamed outside Japan in their original language with subtitles on the same day they are released domestically, divided into four or five episodes each. For the Japanese version, the opening theme is "Butter-Fly～tri.Version～" by Kōji Wada, while for the English version, the opening theme is "Digimon Are Back (Again!)" by John Majkut.
Tai, now in high school, feels downhearted that his friends are slowly drifting apart. Meanwhile, strange occurrences are causing electronic devices to malfunction across Odaiba. Minutes before Tai is set to play a soccer match, a Kuwagamon that had been causing the malfunctions materializes and rampages throughout the city. Just as Tai is cornered, his Digivice shines and Agumon appears while digivolving into Greymon to fight the stronger Kuwagamon. As the two Digimon collide through spatial distortions to Haneda Airport, Tai gives chase by hitching a ride with his homeroom teacher, Daigo Nishijima. As more Kuwagamon appear, Tai is joined by the other DigiDestined and their partner Digimon, who defeat two Kuwagamon before Alphamon intervenes and crushes the last one.
After the battle, the DigiDestined investigate the circumstances leading up to Kuwagamon's appearance. Tai and Matt pay a visit to Nishijima, who reveals he is part of an organization monitoring Digimon activity. As Izzy develops ways to provide easier access to their partner Digimon and seek out digital disturbances, Tai begins to fear that people could get hurt as a result of his actions as a DigiDestined.