The Great Apocalypse

The Great Apocalypse is the 492 season episode In The Manny Centurions The Clash of Kaijudo

Trivia

 * Apocalypse Army Dragons planned to destroy the City
 * Manny found out and knew why Shawn been acting like that with him
 * Isao revealed that why Shawn has left the Order of the Kaijudo Duel Masters and also was acting like that with Manny