The New Chuunin Exams
The story travels back to the time after Sasuke's defection from the Leaf and before Naruto's return from his two-year training journey with Jiraiya.
Aired 08/01/2015EP 394 - The New Chuunin Exams
2007
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)