This episode opens with, and introduces, Mako Tsunami. After Yugi and gang have a short conversation with him, the intro plays, and we see Mokuba escaping from his high tower. After we learn some kid is getting banished from Duelist Kingdom after having his star chips stolen, Yugi and the gang run into Mokuba, dueling him for a short while until Mokuba gives up and returns the chips. Next, we see Kaiba developing his new dueling technology. After Kaiba narrowly escapes from some "armed" henchmen, they steal his deck. Back at Duelist Kingdom, Yugi and the gang encounter "Kaiba's ghost"