Bleach Episode 21: Enter! The World of the Shinigami
Episode 21 of 366 of Bleach, aired March 1, 2005, 23 minutes. Available with English subtitles and dub where released.
Episode summary
Ichigo and the others enter the Soul Society after making it past the Capturing Thrust. Now they must find a way to enter the place where the shinigami live. One way to enter is to pass through the Gate of Pure Spirits. One problem though; Jidanbou, a man of Herculean strength, is guarding the entrance.