Following the aftermath of the previous incident, life seems to return to normalcy until a mysterious icon reemerges across screens in Japan, seeking out Yagami Taichi and Ishida Yamato. This icon, revealed to be the once-defeated Diablomon, has manifested physically and unleashed countless clones into the real world. Koushiro and Ken collaborate on a plan to eradicate the virus with the help of past and present Chosen Ones. As time ticks away, the race to thwart Diablomon's sinister scheme unfolds, shrouded in uncertainty. Can the resurrection of Omegamon thwart Diablomon's resurgence, or will his legion of duplicates overpower the Digimon Champion of Justice? Unfamiliar with the new generation of Chosen Ones and their tactics, the stakes escalate as Tokyo hangs in the balance, culminating in a high-stakes battle for the city's fate.