Which episode is Watergate Meeting Naruto?

Episode 387 synopsis:

Naruto was hit by the collapse of the young field in front of him, which made chakra in Kyubi no Youko start to escape, but he was able to prevent Yamato from being out of control in Kyubi no Youko from performing a task in the distance.

Naruto fought fiercely in Kyubi no Youko and heaven. In this battle beyond people's cognition, the number of Naruto's tails finally came to eight.

Extended data:

The story after Watergate met Naruto.

Naruto meets the fourth generation Huo Ying-Bofengju in the spiritual world. With his father's encouragement, Naruto's confusion vanished. He made up his mind to find the answer entrusted by Jiraiya, and then returned to the real world waiting for him in Paine.

In order to cut off the chain of hatred, Naruto planned to go to the hiding place of Peiyin noumenon, but he met Sijiao and others on the way. Face Naruto's request and talk to Peiyin himself alone.

Although they disagreed, they decided to respect Naruto's idea, and Naruto finally met his brother Nagato. Time goes back to the eve of the exam. Naruto, who should have practiced hard, decided that this was the ultimate ninja meaning left by the fourth generation Naruto after hearing the topic of "the legacy of the fourth generation Naruto".

Baidu encyclopedia-Naruto storm biography