While Yugi and the others try to figure out how to get Tristan's body back from Nezbitt, and also work out what the deal is with the strange robot monkey that is following them around, Kaiba has more important things to consider when Mokuba is kidnapped. After the rescue attempt fails, Kaiba is confronted by Leichter, the fifth and final member of the Big Five, whose Deck Master may prove to be the most powerful yet.
