Episode 161 - The Appearance of Strange Visitors
Sasori left the Sand Village in Episode 20 of Naruto Shippuden.
Season 8, Episode 157- Assault on the leaf village.
It's not an episode, it's Omake! means are short extras that appear ar the end of the certain episode within the Naruto: Shippuden plot. Anywho, it appeared at the end of episode 129 (Infiltrate! The Village Hidden In The Rain) as an extra, the short is called "festival" (duh!) and just skip to the end, minute 22:04 to watch the short! :)
First shippuden episode
Naruto comes back to the village on the first episode of Naruto Shippuden.
Naruto Shippuden, Episode 1.
It was a OVA called: Hidden Leaf Village Grand Sports Festival!
This happens in Naruto Shippuden Season 8.The lead in was in Episode 156: Surpassing the Master.The invasion happened in Episode 157: Assault On the Leaf Village!
The Valley of The End, same place Madara and the 1st hokage fought
In naruto shippuden 163 naruto arrives at leaf village to find it destroyed. He begins to fight pain and the episode ends with naruto throwing rasenshuriken at pain.
i do not remember what the episode number was but i remember that it was right after sauske left the village it was 3 or 4 episodes after.
Episode 20 of Naruto is were the chuunin exams begin...