The Next Challenge! Naruto vs. Nine Tails!!
With Killer Bee as his new master, Naruto begins his training to control the power of a Tailed Beast. In order to do so, one must fight the Tailed Beast head on and absorb its chakra, converting it into one’s own power.
Aired 19/01/2012EP 245 - The Next Challenge! Naruto vs. Nine Tails!!

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)