One plotline could be that Tony has a new case involving a Hebrew - speaking community or an Israeli connection. His knowledge of Hebrew helps him communicate with key witnesses or suspects, leading to solving the case in a unique way.
Maybe Tony discovers he has a long - lost family member who is Hebrew - speaking. This could lead to a journey of self - discovery for him as he tries to connect with his roots through learning and using the Hebrew language. He might also have to deal with the cultural differences and secrets that come with this newfound family connection within the context of the NCIS world.
There could be some great fanfictions out there with this concept. Maybe you could reach out to the NCIS fan community on social media platforms like Twitter or Tumblr. Post a query asking if anyone knows of a fanfiction where Tony speaks Hebrew. You might be surprised at how helpful the community can be. Also, don't forget to check the tags carefully when you do find some potential fanfictions. The tags can give you an idea of the plot, the genre, and whether it really focuses on Tony speaking Hebrew as you're interested in.
One possible plotline could be that Hermione is chosen to be an ambassador of sorts for the Hogwarts students when they visit Bulgaria for a magical exchange program. So, she has to learn Bulgarian quickly to communicate effectively, and this leads to various adventures and cultural exchanges.
Perhaps Harry is transported to a parallel magical world where Hebrew is the main language of magic. He has to quickly learn to speak Hebrew in order to communicate and find his way back to his own world. Along the way, he meets new friends who teach him about the unique aspects of Hebrew magic.
Another plotline might be that they meet during an undercover operation. They pretend to be a couple for the mission, but gradually, real emotions develop between them. The story could then follow how they navigate their new - found relationship while still being part of the NCIS world.
One possible plotline could be Thanos trying to win Tony over while still being true to his villainous ways. Another could be Tony using Thanos' feelings to his advantage in a battle.
A possible suspect could be an informant who has turned on Tony. Maybe the informant was promised a better deal by another party if they got rid of Tony. Also, it could be a new criminal on the scene who sees Tony as a threat. This new criminal might be trying to establish their power and reputation, and taking out a well - known NCIS agent like Tony would be a big statement. Another suspect could be a person with a grudge against the NCIS in general, and Tony just happens to be an easy target.
One possible scenario could be that Tony sacrifices himself to save a teammate during a dangerous mission. Maybe he takes on a bomb - defusing task and runs out of time, dying heroically.
One possible plotline could be the daughter inheriting Tony's genius and getting involved in some high - tech project at a young age. For example, she might build her own mini - Iron Man suit.
One possible plotline could be Tony as a panther facing off against some kind of threat to his territory. Maybe there are other supernatural creatures trying to encroach on his space.
You can start by looking on fanfiction.net. It has a large collection of NCIS fanfictions, including many about Abby and Tony. The site is easy to navigate, and you can search specifically for their stories using the search bar.