Bleach Episode 54: An Accomplished Oath! Get back Rukia!
Episode 54 of 366 of Bleach, aired October 18, 2005, 25 minutes. Available with English subtitles and dub where released.
Episode summary
The excution of Kuchiki Rukia is starting to happen. As other captains are preparing to for the excution and Ichigo is still in his Ban-Kai training; Will Rukia be saved?