Serena was kidnapped by The Doktor for his sick brainwashing experiment, and had gone missing. You tracked her down quickly and found her in an abandoned warehouse where a duel stadium was set up. You see The Doktor waiting for you on the stage and he yells for you to duel him in order to save her.

You climbed the stadium and took your place at the stage. He presses a button and you see Serena emerge chained to a chair above the stadium. You grit your teeth as you pull out your duel deck and slam it onto the machine, starting the duel.

"Let's begin shall we?" The Doktor says maliciously and slides his own deck into the machine.