This movie takes place after the Adventure series ends. It begins when a new Digimon Egg is found on the internet, and manages to penetrate into almost every computer system in Japan. When the egg hatches, it's identified as a new kind of Digimon, a Virus-type. It sustains itself by eating data from various system, and starts wreaking havok in Japan. As it consumes more and more data, it continues to evolve. And Taichi and Koushiro decide it's time to stop it.

They're off, sending Agumon and Tentomon through the internet to fight off this new enemy. But, with the Virus controlling systems like the American military, all too soon, this digital menace may become all too real. Calling in the help of Yamato and Takeru, they hope that they can stop what's already begun, and maybe save this world a second time.

(Source: AniDB)

Two years have passed since the end of the Fourth Great Ninja War. Konohagakure has remained in a state of peace and harmony—until Sixth Hokage Kakashi Hatake notices the moon is dangerously approaching the Earth, posing the threat of planetary ruin.

Amidst the grave ordeal, the Konoha is invaded by a new evil, Toneri Oosutuski, who suddenly abducts Hinata Hyuuga's little sister Hanabi. Kakashi dispatches a skilled ninja team comprised of Naruto Uzumaki, Sakura Haruno, Shikamaru Nara, Sai, and Hinata in an effort to rescue Hanabi from the diabolical clutches of Toneri. However, during their mission, the team faces several obstacles that challenge them, foiling their efforts.

With her abduction, the relationships the team share with one another are tested, and with the world reaching the brink of destruction, they must race against time to ensure the safety of their planet. Meanwhile, as the battle ensues, Naruto is driven to fight for something greater than he has ever imagined—love.

[Written by MAL Rewrite]

Second part of two Hakuouki movies.