The Seven Great Demon Lords have existed for eons. A natural part of the world, but no one knows why. Some are born in darkness, others once angels turned into demons never to be angels again. Once you fall there's no return to grace. What you once were is lost to darkness. Maybe a small light can lead the way to a brand new world, or will it lead to the greatest fall of all?

Four years have passed, and a new threat has spread throughout the digital world. The digitdestined must face challenges for themselves and for their friends. Will they overcome the challenges in time to save the digital world?

When some of the digidestined and tamers old enemies come looking for revenge. They all team up to defeat their old foes, and make some new relationships along the way. However the others soon discover that the Legendary Warriors digital world is far worse than anything they have ever dealt with and that the dimensional ties are more fragile than they thought... seasons 2-4 X-over

Crossover 02x04 Daemon teams up with Lucemon to take over both worlds. With the Digital World already in their grasp, they move on to the human world. The Chosen Children and the Legendary Warriors must work together to protect both worlds while fighting against new and past enemies.