"The Arrival of SkullGreymon"

With his new Crest, Tai stuffs Augumon full of food so he gets plenty of energy.  His explanation is that since Augumon ism the only one who can go to Ultimate, he needs energy in case they run into evil digimon.  Even Augumon protests, but Tai doesn't care.  When they find a signal for Joe's crest, they run to a place called the Colluseum (which looks like the roman Colluseum.)  There Gazimon gets a message from Etemon to prepare for the Digidestined.  He traps all the Digidestined in...surprise!  A soccer goal!  The goal is electrified, so they cant get out, but luckily Augumon is still outside it.  When an evil Greymon attacks, he digivolves, buut is too stuffed with food to fight properly.  Finding a trap-door, the others escpe and find Joe's crest.  Tai puts himself in danger in order for Greymon to digivolve...but the digivolution goes wrong, and Greymon turns into the evil SkullGreymon.  SkullGreymon wreaks havoc for a while, but eventually runs out of energy and dedigivolves into Korromon.  Tai apologizes and promises he'll never do something that stupid again.