Astonishing Truth! Gaara's Identity Emerges!

is episode 74 episode of the original Naruto anime.

Synopsis
Leaving Shino to deal with Kankuro, Sasuke continues his pursuit of Gaara. Kankuro attacks Shino with his puppet, using its many hidden weapons to catch Shino by surprise. Shino is able to dodge the attacks through the use of his destruction bugs, though eventually makes the mistake of inhaling some of the puppet's poison. As the battle goes on, Shino directs his bugs to Kankuro's location. They consume his chakra once they get there, causing Kankuro to collapse. The battle won, Shino also collapses due to Kankuro's poison. Sasuke catches up with Gaara as Shino's battle ends, and the two resume their match.