Bleach the Movie: The DiamondDust Rebellion

Squad 10 is tasked with protecting a royal procession carrying the powerful Ouin artifact. During the mission, a group of assailants attacks the caravan, stealing the Ouin and injuring Hitsugaya. The Seireitei accuses Hitsugaya of treason and places Squad 10 on lockdown. Ichigo Kurosaki encounters the injured Hitsugaya in the human world and learns about the situation. Together with Rukia, Renji, and Matsumoto, they aim to prove Hitsugaya's innocence and find the missing Ouin. As Hitsugaya chases the real culprit, a ghost from his past haunts him.