New Enemy
Tsunade suspects that Danzou is plotting something and orders an investigation of him. Team Kakashi, Chiriku and Sora notice the coffins moving on their own, but fail to intercept them. The coffins emerge on a cliff, where the leader of the enemy ninja orders his subordinates to deal with their foes. The ninjas turn the area into a maze of rocky canyons and pits, full of deadly traps. The team members are separated from each other, and begin facing off against the enemy. Yamato speculates that the ninja may have orchestrated the theft in order to target someone on his team.
Aired 15/05/2008EP 59 - New Enemy

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)