Six months after the battle between the Dark Signers and the Signers, a large stone tablet falls (which is Machine Emperor Wisel Infinity's tablet) from space and lands on Earth, just outside of New Domino City. Whilst investigating it, Lazar encounters three people from Yliaster, who are Jakob (the leader), Lester (self-appointed sub-leader), and Primo (the lowest-ranking member). He questions them about their intentions, but after being reminded by Primo that they were his leaders, and after a brief outburst, in which Primo points the tip of his sword at Lazar's neck, he quickly submits to the trio, and turns over the leadership of New Domino City to them. Then, Primo tells the other members of the trio that he was going to take his Machine Emperor out for a "test drive." A day later, Sector Security investigates a turbo duelist named Ghost, who is attacking Turbo Duelists, and stealing their synchro monsters, at night. Jack, Yusei and Crow, meanwhile, are preparing for an upcoming tournament, but when Trudge suggests Jack, Crow, and Yusei to help him take down the Ghost, Crow rejects Trudge's plea for assistance, in favor of working on their new engine, as he states that they have the Grand Prix to prepare for, and that they don't have any time to spare. Instead, Crow insists that Trudge and the rest of Sector Security, being the cops, go chase after the Ghost themselves. Trudge encounters Ghost later that night, but is defeated and severely injured. He warns Yusei not to use Synchro Monsters against Ghost. After the incident, Crow feels guilty about what he told Trudge. After Yusei tells him that blaming himself was not going to work, Crow asks Yusei what he should do, to which Yusei replies that they go find and beat the Ghost. Yusei, Jack and Crow then go and search for Ghost, who Yusei soon encounters after several hours of riding. He soon finds himself up against Ghost's Machine Emperor Wisel Infinity, a combo monster formed from five other monsters.