A group of 4 Arrancar has been sent to the real world. Yammy, Grimmjow, Luppi and Wonderwise. But they are not ordinary Arancars, they are part of the Espada (Elite Arrancars).
Ichigo, Rukia, Orihime stops their training to help out Hitsugaya's team against the Arrancars.
Bleach Episode 138 - Hitsugaya vs Yammy
