One great 'NCIS LA and NCIS Crossover Fanfiction' is 'The Joint Operation'. It combines the unique characters from both shows really well. The plot usually involves a case that requires the expertise of both teams. It shows how the agents from NCIS and NCIS LA interact, like how Gibbs' no - nonsense approach clashes and also gels with Hetty's more mysterious style of leadership.
One reason is the expansion of the universe. By crossing over, fanfiction writers can explore new relationships between characters. They can put characters in situations that test their limits and abilities. Moreover, the fans are already attached to the characters from both shows. So when they are combined, it's like a dream come true. It gives a chance to see how the LA - based agents would handle a case that's more in the realm of the original NCIS and vice versa.
A really interesting piece of fanfiction in this crossover genre is 'Cross - Agency Tensions'. This story delves into the initial frictions between the NCIS and NCIS Los Angeles teams when they first start working together, and how they overcome them. It's a great read for those who like character - driven stories.
One idea could be that some of the NCIS agents are sent on a mission to a world that has similarities to the Naruto universe. They could team up with Naruto and his friends to solve a mystery that involves both their worlds, like a powerful weapon that could disrupt both dimensions. The NCIS agents would be shocked by the ninja skills and chakra usage, while Naruto and his friends would be intrigued by the advanced technology of the NCIS.
You can also check out some dedicated NCIS fan forums. Sometimes, fans share their own crossover fanfictions on these forums, or they can point you in the right direction to find some really good ones. It might take a bit more digging, but it can be worth it for some unique finds.
One plot idea could be a joint case where the NCIS team and the NCIS LA team have to work together to solve a crime that spans across different locations. Maybe a terrorist threat that has connections in both Washington D.C. (where NCIS is based) and Los Angeles.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works, including many NCIS and NCIS LA crossovers. Just use the search function and type in relevant keywords to find what you're looking for.
One common theme is the clash of different investigative styles. When NCIS crosses over with other shows, like 'Law & Order', their different approaches to solving crimes often create interesting conflicts and resolutions. Another theme is friendship. Characters from different shows form unexpected friendships in the crossover fanfiction.
Perhaps a fanfiction where a member of the Criminal Minds team, say Reid, gets framed for a crime that involves national security, which brings in the NCIS. The NCIS team initially suspects Reid but as they dig deeper, they realize he's been set up. Together, they work to clear Reid's name and find the real perpetrator who is using the situation to cover up a much larger conspiracy that spans both military and civilian sectors.
Well, 'Twilight's Intrusion in NCIS' is also a popular one. In this fanfic, the vampires from Twilight somehow end up in the NCIS world. It's really exciting to see how Gibbs and his team handle these new and strange entities. There are some really intense action scenes and some great character development moments as the two groups learn to work together.