The ultimate weapon appears on the battlefield in Episode 341 .
The final antagonist arrives to initiate the Infinite Tsukuyomi in Episode 458 .
In the anime series, the Fourth Great Ninja War begins at episode 170 of Naruto Shippuden (Season 5, Episode 1), and the preparations for the war are shown from episode 120 onwards.
To be more specific:
The ultimate weapon appears on the battlefield in Episode 341 .
The final antagonist arrives to initiate the Infinite Tsukuyomi in Episode 458 .
In the anime series, the Fourth Great Ninja War begins at episode 170 of Naruto Shippuden (Season 5, Episode 1), and the preparations for the war are shown from episode 120 onwards.
To be more specific: