Super Duper Sumos
This Was Zen, This Is Tao
S1 E26:
When Genghis laments the old days when Wisdom San first beat him and ruined his hopes to destroy the world, Ms. Mister gets the idea to send Genghis back in time to change the tide of the battle to the side of evil. Only three super duper sumos can stop their time-changing plan of destruction.