Bleach Bleach Season 1, episode 300 Urahara Appears! Stop Aizen! 7.6 / 10 December 7, 2010 24 min The battle with Sōsuke Aizen continues as Aizen is transformed by the Hōgyoku. Previous episode Theatre Opening Commemoration! The Hell Verse: Prologue Next episode Ichigo Loses His Fighting Spirit!? Gin’s Expectation!