The A-Rank Mission: Food Fight
Naruto arrives to help a team of Allied Shinobi Forces led by Karui, who are struggling against a reanimated samurai, whom Naruto recognizes as a man named Tatewaki he met on a previous mission. Naruto has a flashback to when Tsunade assigned Team 10 and Naruto to go to the Land of This and kidnap Shū, the son of the Feudal Lord under a treaty. Shikamaru formulates a plan to capture the Shū by having Chōji enter an eating contest at the Land of This' castle and get second place. Chōji speeds through the competition, and before the final round, Ino uses her Mind Transfer Jutsu to take control of Shū and goes to the washroom in the castle, where Naruto uses his Transformation Technique to transform into Shū. When Shū is able to re-enter his body, he asks who Shikamaru is and Shikamaru explains the mission to him.
Aired 18/04/2013EP 309 - The A-Rank Mission: Food Fight

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)