Quick recap
The fourth Shippuden movie. Naruto, Sakura, Sai, and Yamato chase Mukade, a rogue ninja, to the desert ruins of Rōran. Mukade tries to seize the Ryūmyaku, an underground source of chakra, and ends up sending Naruto and Yamato twenty years into the past. There Naruto learns that Mukade arrived first and took the identity of Minister Anrokuzan, who murdered the queen mother. He befriends the young Queen Sāra and defends her people from a puppet army, alongside a young Minato Namikaze. Together they create a super Rasengan and take down Mukade's giant puppet. Minato seals the Ryūmyaku and wipes everyone's memories so history stays intact.
No spoilersOpens once you mark the title as seen.