Sai and Shin
As the battle between the two divisions gets under-way, Shin is sent in to battle Kankuro's Sasori puppet, and the clay Deidara set in Shin's stomach explodes. The explosion is stifled by Kankuro's puppet which encased Shin. Enraged by Deidara's reference to his brother as a bomb, Sai knocks Deidara and Sasori out of the air and into Kankuro's awaiting puppets. Shin sees the drawing of both him and Sai holding hands which frees his soul. Moved by Kankuro's speech, Sasori entrusts Kankuro with his Mother and Father puppets, and asks him to pass them down to the generations to come before his soul is also freed.
Aired 17/05/2012EP 263 - Sai and Shin
Naruto: Shippuden
Naruto: Shippuuden is the continuation of the original animated TV series Naruto. The story revolves around an older and slightly more matured Uzumaki Naruto and his quest to save his friend Uchiha Sasuke from the grips of the snake-like Shinobi, Orochimaru. After 2 and a half years Naruto finally returns to his village of Konoha, and sets about putting his ambitions to work, though it will not be easy, as he has amassed a few (more dangerous) enemies, in the likes of the shinobi organization; Akatsuki.
(Source: Anime News Network)