Yugi crumples in exhaustion under the crippling power of the Shadow Game. His friends yell desperate encouragement, but their voices cannot penetrate the sphere of darkness. Yugi’s chance at victory is slipping away, as is his life!

The trickster Insector Haga spins a web of lies to bait Jonouchi into a lopsided duel! Haga secretly infests Jonouchi’s deck with a parasite that prevents Jonouchi from summoning strong monsters! Without the support of his most powerful beasts, what chance does Jonouchi have against a monster that even Yugi didn’t dare face at Duelist Kingdom: Perfectly Ultimate Great Moth!?

Dartz calls forth Divine Serpent Geh, a sinister snake with infinite attack points! Yugi counters by joining the three legendary dragon knights into the mighty Timaeus the Knight of Destiny, but is that enough to combat a monster with limitless strength? As the great forces clash, the gateway opens for the final endgame as the world-devourer Grand Dragon Leviathan and the legendary Atlantis rise out of its watery grave!