Like all Naruto movies, it's just an extra little sub plot, that will not be remembered in the main story, at all. Even though a lot of interesting things happen. And because the plot is meaningless the only thing left is action, which it has in ample supply.
In this story Naruto is sent into the past and helps save some people. I won't say anything ells about the story.
Good thing it ain't that emotional as always, i so hate it when they get to emotional.
All in all if you are still waiting for this weeks episode, git it a try, if you don't care about the series, skip this, no one is making you watch it. (show less)