The Search for the Bikochu arc takes place during the original Naruto anime.
Synopsis
As Naruto Uzumaki's 'last chance' to go after and find Sasuke Uchiha he must find the Bikochu Beetle, a rare insect that was once often used to find missing-nin or others that had disappeared from the village. Because of wide use, it is now almost extinct, making them very hard to find.
Unknown to the Leaf ninja, there are others trying to find a Bikochu as well. Soon after Naruto and Hinata Hyuga catch one, the Kamizuru clan take Hinata hostage in order to get the Bikochu. Hinata, desperate to save her team, escapes and protects her teammates from the killer bees with her new defense jutsu. They all escape to the village, safe and sound.
As soon as they made it back to the village, Naruto accidentally 'farted' in front of it before it had the scent of Sasuke. This makes the Bikochu beetle attracted only to Naruto, thus their mission failed.