Naruto Shippuden

Naruto and the Old Soldier (9x15)

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Naruto, two jonin and an elder known as "the Eternal Genin" set off to a mission to patrol the border of the Land of Fire following Orochimaru's attack. After some days with no incidents, a group of enemy ninjas cross the borders. The Eternal Genin proves to be a brave ninja and remembering the lessons he learned with the 2nd and 3rd hokages, sees the similarities between Naruto and his father.