The Sixth Hokage Danzo
Naruto and Sakura learn that Danzo has been made Hokage and that his first order is to eliminate Sasuke. The two go to Sai and inquire about Danzo, but Sai reveals that a curse mark given to all members of the Foundation prevent him from revealing anything about the new Hokage. Soon afterward, Karui and Darui attack them, demanding information about Sasuke.
Aired 10/02/2011EP 197 - The Sixth Hokage Danzo

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)