Naruto Episode 180: Secret Technique: Compensation of Peacock Mysteries.
Episode 180 of 220 of Naruto, aired April 12, 2006, 25 minutes. Available with English subtitles and dub where released.
Episode summary
The Konoha team continue to investigate the star's theft and start to realise everything is not quite as it seems. Everything seems to be leading to a final battle, but who is the real enemy behind all this?