Yaiba Kurogane is determined to become a true samurai, but things take an odd turn in the jungle.

Yaiba has come up with a plan and is willing to do nearly anything to provoke Onimaru to a duel.

Onimaru now wants to fight Yaiba, but something's off, not least the horns sprouting from his head.

Yaiba and his companions finally reach Ganryujima, where they encounter Mr. Spider — and a resurrected, but somewhat peeved, Sasaki Kojiro.

Musashi and Kojiro's duel must proceed as recorded so Yaiba can return to his original time, but Yaiba's careless comment threatens to change history.