Maybe in this fanfiction, Naruto is kidnapped at birth by a rogue ninja who wants to raise him as his own to create a powerful successor. This ninja takes Naruto to a far - off land where he is taught different ninja techniques. Eventually, Naruto discovers the truth about his abduction and decides to return to Konoha to reunite with his true family and friends.
One possible plot could be that a powerful and secret organization kidnaps Naruto at birth to use his special chakra for their own dark purposes. They keep him hidden away, training him to be a weapon against the Hidden Leaf Village. However, as Naruto grows, he starts to question his captors' motives and tries to break free to find out about his true heritage.
In this 'naruto kidnapped at birth fanfiction', it could be that an enemy village kidnaps Naruto. They believe that by having the son of the Fourth Hokage, they can gain an advantage over the Leaf Village. Naruto is raised in a hostile environment, but he still has his kind heart. As he gets older, he manages to escape and goes on a journey to understand both his new - found enemies and his original home, leading to a complex story of identity and loyalty.