While traveling in the desert, Joe's Tag react, leading the group into a Roman-like coliseum. There, they are trapped by Etemon and Greymon is forced to fight another Greymon.
As the DigiDestined return to the Digital World, they learn of the four Dark Masters who have taken it over. MetalSeadramon, Puppetmon, Machinedramon, and Piedmon are all mega level Digimon, and are more than a match for the DigiDestioned.