My Co-Founder Fall

My Co-Founder Fall is the 483 season episode In The Manny Centurions The Clash of Kaijudo

Trivia

 * Fallen Kaijudo Dragons attacks the school
 * Master Yi reveal to Yu that Hattori is the one of Order's great ninja in China
 * Atlanna reveals to Manny that She was his Co-Founder of Kaijudo School from the time before her fall