The NCIS agents, being highly trained professionals, would approach Harry in a very matter - of - fact way. They would be a bit skeptical about his claims of magic at first. Harry, on the other hand, would be amazed by the Muggle technology that NCIS uses. There could be some humorous moments when Harry accidentally does something magical, like making a pen levitate, and the agents are completely stunned. As they work together to escape the bad guys, they would gradually develop respect for each other's abilities.
The plot could involve a magical artifact that Harry Potter is trying to protect. This artifact has somehow made its way into the world of NCIS. Dark wizards want to get their hands on it and will stop at nothing. Harry is in over his head as he tries to deal with both the Muggle law enforcement and the powerful magic of his enemies. NCIS agents, with their own code of honor and sense of justice, step in to rescue Harry. They start to learn about the magical world as they help him, and together they come up with a plan to keep the artifact safe and get Harry back to Hogwarts.
Maybe the Fem Harry Potter is being hunted by Voldemort's followers in a new and unexpected way. The NCIS agents rescue her, but then find out that there are spells on her that are affecting the Muggle world around them. They need to find a way to break the spells while also keeping her safe from the Death Eaters. This could lead to some interesting interactions between the two very different worlds.
There could be some comical interactions. For example, the NCIS agents might try to use their standard interrogation techniques on Fem Harry Potter, which would be completely ineffective since she's used to a different set of rules in the wizarding world. Meanwhile, Harry might accidentally use magic in front of them in a moment of panic, causing chaos. As they get to know each other better, the NCIS agents could start to learn some basic magic defense spells from Harry, while Harry learns about Muggle self - defense and investigation methods from the agents.
In the fanfiction world, Greengrass is often a Slytherin student. She usually comes from a pure - blood family, which gives her certain status and expectations within the wizarding world. In the context of rescuing Harry Potter, she might be a character with a strong sense of justice that goes against the typical Slytherin stereotype. She could have her own set of skills, like being an excellent duellist or having a deep understanding of certain types of magic that enable her to come to Harry's aid.
In fanfiction, it could be that the NCIS has some sort of magical knowledge or artifacts. Maybe they've been dealing with cases that are on the fringes of the wizarding world without realizing it. When they discover that Harry Potter is in danger, they use this knowledge or these artifacts to save him. For instance, they could have an ancient amulet that can counter dark magic spells aimed at Harry.
Well, identity is a common theme. In these fanfictions, characters often have to re - evaluate who they are when they are exposed to a new world. For instance, an NCIS agent might question their beliefs when faced with real magic. And in some fanfics, there's also a theme of family. The strong family - like bonds in the Harry Potter series are sometimes incorporated into the NCIS team dynamics, creating a sense of unity and loyalty within the group that helps them face the challenges that come from the combination of the two worlds.
One common theme is the clash of different worlds. For example, when Harry Potter is rescued in a crossover with another universe, like the Star Wars universe, there's a lot of focus on how the magic of Harry's world interacts with the technology and different species in Star Wars. It's about two very different concepts trying to coexist.
One possible plot could be that Harry is wrongly accused of a crime in the wizarding world, perhaps something related to dark magic. The police, who might be a new magical law enforcement unit, rescue him from an angry mob. They then help him clear his name by finding the real culprit, who could be a Death Eater in disguise trying to frame Harry to cause chaos in the post - Voldemort era.
Perhaps there is a prophecy in both universes that foretells of a great danger that only the combined forces of Harry Potter and the Avengers can face. When the Avengers learn of this, they travel to the wizarding world to find Harry. They rescue him from an immediate threat so that they can all prepare to face this greater danger together. The Avengers could introduce new ways of fighting and thinking to Harry, while Harry could share his knowledge of magic with them.