Tập 23: Đội nhóm thăm Webmaster Joe đang nằm viện, dẫn đến một trận chiến trên mái nhà và một sự thật về Wavern.

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The team go to a city where Webmaster Joe is staying in a hospital. They enter the hospital and ask the receptionist where Webmaster Joe's room is and she tells them 'Room 501'. Then Dan goes looking for him, losing the others but can't find the room Joe is in and ends up the others decide to go and see Joe on their own. Runo knocks on the door and a lady says 'Come in' and they do. She introduces herself as Joe's Mother while talking about him and bringing out freshly baked cookies. Julie tries one and has some more as she loves them so much. The team and Joe's Mother wait for him. Instead, Dan finally finds Joe and they go up on the roof so then Dan challenges Joe to battle to find out if he is working for Masquerade. Amazed, Joe stands around in the Bakugan Field since it is his first time ever. Dan very shocked that he has never played before, carries on. But in between the battle, Joe collapses and is taken to a room where the team and Joe's Mother are waiting for him to wake up. Finally, he does and tells the team he had a dream about a Bakugan called Wavern who is Naga's twin sister and the current owner of the Infinity Core. She tells him not to let Naga get his greedy claws on the mighty Infinity Core or all of Vestroia will be destroyed. After that the others think about that and Dan welcomes Joe to the Bakugan Battle Brawlers team and everyone is happy. (Source: Wikipedia)