Last time Yusuke found himself in a canyon that stretched around inside the Foliage Fortress; then he found himself defending against Kurama. He tried to reason with him, but to no avail. In the end Yusuke gave his all and defeated his old friend. Returning to his task of making it through the fortress, he encountered an unharmed Kurama in a successful ambush. Now the Spirit Detectives, Kuwabara, and Yusuke are being held prisoner while Hiei is the final target on their list. With time drawing short as the fortress soars into its destined position, can the world be saved from impending doom?