First, know the show well. Understand the personalities of the main characters like Hetty, Kensi, and Deeks. Then, create an OC that has a unique backstory but can fit into the world of NCIS LA. For example, if your OC is a former military, explain how they ended up in NCIS. Keep the action and mystery elements that are typical of the show in your story.
One great NCIS Los Angeles OC (Original Character) fanfiction is 'The New Recruit'. It has a well - developed OC who brings a fresh perspective to the team. The story is filled with action and the character interactions are very much in line with the show's dynamic.
You can start by searching on fanfiction websites such as Archive of Our Own (AO3) or FanFiction.net. Just type in 'NCIS Los Angeles' in the search bar, and you'll get a whole list of fanfiction stories. You can also check out fan communities on social media platforms like Reddit or Tumblr. There are often discussions about good fanfiction in these groups, and members might recommend some great stories.
One great 'ncis ncis los angeles crossover fanfiction' story is 'The Joint Mission'. It combines the characters from both shows in a really exciting way. The story has a great plot that keeps you on the edge of your seat as the teams from NCIS and NCIS Los Angeles work together to solve a complex international crime.
One great fanfiction could be 'Callen's Struggle'. In this story, Callen gets injured during a mission and has to deal with both the physical pain and the fear of not being able to return to his full strength. It really delves into his character and how his team supports him.
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.
A crossover fanfiction might start with a case where the NCIS Los Angeles team discovers that a crime they are investigating has a connection to a scheme that the Leverage team has been looking into. They initially suspect each other but then realize they need to work together. The story could focus on the cultural clashes between the two groups, as the NCIS agents are more by - the - book while the Leverage crew is more used to operating in the gray areas of the law.
You can try fanfiction.net. It has a large collection of fan - made stories, and there are likely to be quite a few 'ncis ncis los angeles crossover fanfiction' pieces there.
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 possible fanfiction could be that Kensi is kidnapped by a criminal organization seeking revenge on the NCIS team. Her teammates, especially Deeks, go on a frantic search to find her. They follow a series of cryptic clues left by the kidnappers. In the end, they manage to rescue Kensi through a combination of smart detective work and some intense shoot - outs.
One possible scenario in this fanfiction could be that Callen gets hurt during an undercover mission. Maybe he's been discovered by the bad guys and they attack him, leaving him with a serious injury. His team then has to race against time to find him and get him medical help.