The film begins with around Agumon, Gaomon and Lalamon, whose partners have been placed in a magical slumber along with the rest of city's population, by a mysterious thorned vine that spread throughout the city. As the Digimon make their way through the silent city, they stumble upon a pack of Goblimon, led by an Ogremon, who are attacking a young girl. They scare off the goblins, and the girl, Rhythm, reveals that she is actually a Digimon, then explains that the thorns are the work of a Digimon named Argomon. The quartet sets out to confront the villain atop his skyscraper lair.

Agumon, Gaomon and Lalamon decide to go to the Digital World and wind up in an area resembling a theme park full of many other Digimon, including Calumon who decides to follow them.