The second half transition back to the main storyline. Naruto prepares to leave the Hidden Leaf Village for a two-and-a-half-year training journey with Jiraiya to prepare for the Akatsuki. Useful Guides and Resources

The first half concludes the battle between Gaara and Seimei . Despite Seimei's attempts to force the Shukaku's emergence, Gaara maintains control and defeats him with his Sand Waterfall Imperial Funeral .

Why is episode 220 of the Part 1 anime considered canon? : r/Naruto