Well, it could be about Naruto being transported to the world of Themiscyra. In this fanfiction, he might be recognized as a prince for some special reason. Maybe he shows extraordinary abilities that are different from what the people in Themiscyra are used to. His ninja techniques could be seen as a form of magic or special power there. And he may have to face challenges and make friends or enemies in this new world, all while trying to figure out his new role as a prince.
I'm not sure exactly as it could vary greatly. It might be a fan - made story where Naruto somehow ends up in the world or situation related to Themyscira. Maybe he's held captive there, and the story could explore how he deals with the new environment, the characters from Themyscira, and tries to find a way to escape or adapt.
One idea could be a crossover where Naruto is somehow transported to Themyscira. He might initially be seen as a threat but then prove himself to the Amazons through his ninja skills. Diana could be intrigued by his unique abilities and they could team up to face a common enemy that threatens both their worlds.
The plot could start with Batman's plane crashing on Themyscira. He wakes up to find himself surrounded by the Amazons. At first, there is tension as the Amazons are not used to male visitors. But Batman's honor and sense of justice quickly earn him some respect. He could then team up with Wonder Woman (who is from Themyscira) to fight a common enemy that threatens both Gotham and Themyscira. This could involve a villain who has found a way to steal the power of the Amazons and wants to use it to take over Gotham as well.
Obviously, Naruto would be one of the main characters since it's in the title. And there would probably be characters from the Themiscyra world, like Wonder Woman or other Amazon warriors. They might interact with Naruto in various ways, either as allies or potential foes.
Another idea could be the contrast between Batman's brooding and often solitary nature and the more community - based and female - dominated society of Themyscira. This could lead to some character development for Batman as he learns new ways of interacting and trusting others.
In a fanfiction where Naruto lands on Themyscira, he would likely face initial suspicion from the Amazons. However, Naruto's kind heart and determination could win them over. He might be intrigued by their technology and way of life that is so different from his own. He could end up helping them in some way, like using his shadow clone jutsu to assist with tasks around the island. And perhaps he'd find himself in the middle of some sort of conflict on the island and use his ninja skills to resolve it.
Well, Naruto would definitely be one of the main characters as the title implies he's the prisoner. And there would likely be characters from Themyscira such as Wonder Woman if she's included in the fanfic's version of Themyscira. There could also be other Amazonian warriors who play important roles, either as guards, allies, or antagonists to Naruto.
One possible plot could be Naruto growing up in the unique environment of Themiscyra. He might learn the ways of the Amazons there, like their combat skills and values. This could lead to a very different Naruto compared to the original, with a more Amazon - influenced fighting style.