Breaking the Crystal Release

is episode 104 of the Naruto: Shippūden anime.

Synopsis
The Fighting team continues its battle. Tobi decides to go seek the Three-Tails on his own as he had angered Deidara earlier. He discovers the sealing team trying to seal the Three-Tails at the lake. Shino's bugs defeat Guren, but Kakashi is stopped from killing her by Gozu, who apparently dies protecting Guren. The guarding team stops Rinji from interfering with the sealing team just as Guren remembers she is the one who killed Yūkimaru's mother. Kabuto uses this fact to manipulate Guren.