The Reanimated Allied Forces!
In a attempt to recover his most powerful pawns, Kabuto reincarnated some of his weakest dead soldiers to ambush the Shinobi Alliance. He used Torune to summon them. White Zetsu appeared in the battlefield, and he realised that those were Impure World Reincarnation's failures.
Aired 06/06/2013EP 316 - The Reanimated Allied Forces!
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)