With no idea as to how they are going to open the door to the real world, the group are led by Gennai to his home. A search light guides the baffled children down a staircase to the bottom of a lake where Gennai resides. There, they meet him face to face for the first time, rest, and go over the current situation. Gennai informs the DigiDestined that Myotismon has arrived in Highton View Terrace, Tokyo, Japan. He then gives the kids ten cards with Digimon on them, nine of which can be used to open the portal in Myotismon's castle, but only in the correct order. Though it seems as if the easiest solution would be to try all the arrangements of the cards, Gennai explains that this could take them to an alternate world of sorts and they really only have one shot to place the cards in the right order. That night Izzy is up late talking to Gennai about the two worlds, the real world and the Digital World. He explains to Izzy that Digimon have attributes, are sorted into Data, Virus and Vaccine, and because he has no attributes, he is not technically considered a Digimon. The next day, the group sets off with the cards and Izzy's laptop, newly modified by Gennai. They raid Myotismon's castle, and with him and his best servants gone, getting to the door is easy. MegaKabuterimon fights off the last of the guards and the group begins working on figuring out the order of the cards. The different kids have different ideas of how they are sorted, by level, size and even alphabetical order. Everyone decides that Tai should be the one to make the decision about the order of the cards. After being encouraged by the other DigiDestined, Tai elects Izzy to desipher the code. By using the information Gennai gave him, along with the upgrades on his computer, Izzy quickly figures out the pattern. He leaves Tai to decide on one of two more cards to insert into the sequence. When Dokugumon, one of Myotismon's servants, attacks, Tai must decide quickly while the Digimon fight off the hordes of enemies. Just by luck, he gets the right card, opening the door and taking the group into the real world. They arrive back at summer camp, delighted to realize they have made it back safely and head off to find the eighth chosen child.