Prelude to the Apocalypse, The Arrancar's Attack!
Life goes on for Ichigo, but he is way depressed over the Vizard thing and his Hollow taking over him. After hearing his Hollow saying he is going to take over him, Karin comes in and says she knows about Ichigo being a Shinigami. As she is telling this, two mysteriously strong spiritual powers shake the whole town, making Ichigo, Chad, and Orihime go check it out. It turns out to be two Arrancar's attacking, named Ulquiorra and Yami. Yami sucks out a lot of souls, in the town. Orihime and Chad get there first and Chad tries to fight Yami. Chad doesn't even put up a fight, and is injured really bad by one blow from Yami. Orihime heals him, and tries to fight Yami, and she is about to be killed by Yami when Ichigo shows up.
Aired 31/01/2007EP 113 - Prelude to the Apocalypse, The Arrancar's Attack!

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.