A mysterious force strikes the human world, using poisoned thorns to put every human to sleep. Only three digimon remain to stand against it: Agumon, Gaomon and Lalamon. They save a young girl named Rhythm, and with her guidance they discover that the enemy they face is called Argomon. The trouble is that none of the three can evolve, which leaves them wondering how they can possibly win. This theatrical film blends action, adventure, comedy and science fantasy.