Bleach: Season 1, Episode 136

1 - 136: Civil War in Hueco Mondo! Ulquiorra's Death

An Arrancar named Patros is sick of serving Aizen, because he is a shinigami. He takes the Hougyoku and plans on using it to become King himself. Ulquiorra catches him, but Patros has friends and defeats Ulquiorra very easily. Patros goes to the real world and is in a hurry to find Urahara, to see how the Hougyoku works. He asks his friends to hold off Hitsugaya's gang, and they do. Meanwhile, Patros gets to Urahara's shop and begins battling Renji, because Urahara is away.