Masquerade knows an opportunity when he sees one. A young girl named Mui is feeling sad because her parents have separated and her brother has gone to live with their father in a different city. While Mui anxiously hopes that her brother will be at the aiport, her friends Kosuke and Takashi try to entertain her with a few Bakugan tricks. That's when Masquerade makes his move. He promises the two boys that he will grant any wish they want if they use his Doom cards against the Bakugan Battle Brawlers. Wanting to reunite Mui with her brother, Kosuke and Takashi take the bait and go off to start a Bakugan brawl. Meanwhile Dan gets separated from the rest of the gang at the airport so it's Runo and Marucho who have to battle Kosuke and Takashi. Luckily Alice has arrived for a visit from Moscow and she coaches Runo and Marucho in the finer points of a combination battle. Unfortunately Alice is fighting her own battle, she has a dark secret that will effect the future of the Bakugan Battle Brawlers.