The film series is set three years after Digimon Adventure 02 and takes place in 2005. 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 eight original DigiDestined being reunited with their partner Digimon. Joined by a mysterious DigiDestined named Meiko Mochizuki and her partner Meicoomon, they are set to solve the mystery of the infected Digimon and deal with the responsibility of growing up.
When Tai and Matt fuse their Digimon into Omnimon, Omnimon's form falls apart, allowing Eosmon to escape. In the real world, Tai and Matt find countdown rings on their Digivices. Menoa explains the Digivices are powered by the infinite potential of children, and because Tai and Matt are growing up with their potential fulfilled, they have a time limit before they are separated from their Digimon forever. She also warns them that Digivolving will accelerate the countdown. While Izzy examines Eosmon's fragments, Matt suspects Imura is involved with Eosmon and asks Davis, Yolei, Cody, and Ken to perform a background check in New York. Meanwhile, Gennai visits Tai and Agumon, corroborating Menoa's statement.
