The Digital World is in a state of war, with the evil Bagra Army attempting to collect fragments of the Code Crown. Whoever manages to collect all 108 fragments will become king of the Digital World. An evil group of Digimon, known as the Bagra Army, are determined to get their hands on the Code Crown. Digimon Xros Wars features Taiki Kudou, a soccer-loving middle schooler who will always go out of his way to help people in need. When out with his friends Akari Hinomoto and Zenjirou Tsurugi one day, he hears a voice calling out for help. Investigating the situation, he meets a Digimon named Shoutmon who has been severely wounded in a nearby alley. Using the power of a strange device called a Xros Loader, Taiki manages to save Shoutmon's life, but is pulled into the Digital World alongside Akari and Zenjirou. Determined not to let the evil Bagra have their way, Taiki and his friends join with Shoutmon and other local Digimon to form their own army known as Xros Heart. Now Xros Heart must fight their way across the Digital World to collect Code Crown fragments and defeat the Bagra Army, but Taiki and his friends are not the only humans caught up in this war of monsters…

When a group of seven children go to summer camp, the last thing that they expect is snow falling in July. In the confusion that follows this phenomenon, they each receive an odd device that transports them to another world. As soon as they wake up in this new world, they encounter strange creatures who call themselves Digimon. The Digimon tell them that they've landed in the Digital World, far from home. With only the Digimon and the Digivices as protection, the seven children set off to find their way home and learn the reason why they were brought here. Led by the impulsive Taichi Yagami and his hungry Digimon partner Agumon, this group will have to fight unknown evils as they discover more about this outlandish Digital World.

Sightings of mysterious creatures known as Hologram Ghosts have been a popular topic on social networks for the past few years. According to the rumors, several people have fallen victim to these specters. Those fortunate to survive their encounters with the paranormal beings claim that they resembled glitched holograms. Hazakura Academy middle school student Hiro Amanokawa believes these sightings are merely an urban legend. However, as the incidents start to increase in frequency, he is reminded of the day his father suddenly vanished, with strange digital watches serving as the only relics of his disappearance. Much like the other sightings, what happened to Hiro's father cannot be explained by conventional logic. One day, when a fellow student in the academy is attacked by a Hologram Ghost, Hiro and his friend Kiyoshirou Higashimitarai decide to look into the matter. Little does Hiro know that this investigation will be their first step toward discovering a dangerous world previously unknown to mankind.

The Chosen Children are distraught; believing they have lost one of their friends, the group struggles to find a way to defeat the rampaging Ordinemon. With few options left, they turn to Yamato Ishida for guidance and leadership, but Yamato himself is unsure of what to do. Determined to save the world despite their tragedy, Yamato and his friends must take on the ferocious digital monster. As some of the children are missing their partners, they are at a significant disadvantage. Nevertheless, the Chosen Children resolve to fight until the end to secure their future and that of their friends.