Akamaru Trembles: Gaara's Cruel Strength! Naruto : Season 1 Episode 34

Kiba, Shino, and Hinata decide to try and eliminate their opponents by taking more scrolls. They arrive upon a battlefield where three Rain ninjas are battling Gaara, Kankuro, and Temari. They remain hidden and observe the battle, thinking one of the Rain ninjas is a dangerous foe. After realizing Gaara's amazing abilities, they discover who is the really the dangerous one, and will be lucky if they can sneak away with their lives!