The Unison Sign
Naruto and Sasuke are enveloped in a huge, intense light after exchanging attacks. When they come to, scenes from their childhood unfold. Is this just a figment of their imagination? Or could this be the afterlife?
Aired 06/10/2016EP 478 - The Unison Sign

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)