Elite! The Four Shinigami
Ichigo arrives in the 5th Tower to save Orihime and confronts Ulquiorra, who tells him that because Aizen has not ordered Orihime killed, he shall not do it unless ordered to. But because Ichigo is a threat to Hueco Mundo that must be destroyed, he will kill him. As a result, Ulquiorra finally unsheathes his sword and they begin their battle. Meanwhile, back at the fake Karakura, Barragan takes command since his boss is locked inside Yamamoto's fire prison, ordering both Halibel and Stark to not underestimate him. His first plan of action is to destroy the four pillars protecting Karakura, and he sends out four giant hollows to do the job, failing to realize that the Gotei 13 would not just leave those pillars completely unprotected on purpose. Ikkaku, Yumichika, Kira and Hisagi each take one pillar, and after defeating the hollows with ease, are matched up against four of Barragan's six Fraccion. Each is introduced to the other and the battle for Karakura begins.
Aired 21/04/2009EP 216 - Elite! The Four Shinigami

Bleach
Ichigo Kurosaki is a rather normal high school student apart from the fact he has the ability to see ghosts. This ability never impacted his life in a major way until the day he encounters the Shinigami Kuchiki Rukia, who saves him and his family's lives from a Hollow, a corrupt spirit that devours human souls.
Wounded during the fight against the Hollow, Rukia chooses the only option available to defeat the monster and passes her Shinigami powers to Ichigo. Now forced to act as a substitute until Rukia recovers, Ichigo hunts down the Hollows that plague his town.