A boy named Yugi Mutou solves the Millennium Puzzle which turns in into the "King of Games".

The popularity of Digital Pets leads to a contest, and Honda trains Miho's pet, so they can take the paid trip. Meanwhile, Yugi is worried for his friend Haiyama, who seems to be pressured into some shady business by the bullying Kujirada. But all is not what it seems...

Even when seemingly defeated, Zorc rises again and threatens to overwhelm the gang. It is up to Bakura to defeat his evil counterpart.