A really unexpected plot twist could be that the bullet that hit Gibbs has some sort of experimental technology in it. This technology starts to affect Gibbs' mind or body in strange ways, like giving him strange hallucinations or enhanced abilities. His team then has to figure out what's wrong with him while also hunting down the person who shot him.
Another interesting plot twist might be that the shooting was actually a set - up by someone within NCIS. They could be trying to frame Gibbs for something or gain power within the agency by getting rid of him. So, as the story unfolds, Gibbs has to not only recover from his injury but also clear his name.
One possible plot twist could be that the shooter has a personal vendetta against Gibbs that dates back to a case that Gibbs thought was long closed. Maybe the shooter was wrongly accused in that case and has been planning revenge ever since.
In some fanfics, a plot twist could be that Ziva is actually pregnant before the wedding, but she hides it from Gibbs. This adds a whole new layer of drama to the story as Gibbs discovers it later. Another could be that an old enemy resurfaces on their wedding day, threatening their new - found happiness.
Another plot twist could be that the shooter has a personal vendetta against Callen, but it's based on a misunderstanding. As Callen lies injured, the team discovers that the shooter thought Callen was responsible for something he didn't do. This could lead to a redemption arc for the shooter and a new friendship or alliance in the end.
One possible plot twist could be that the shot was a setup within the team. Maybe someone on the inside was working against Kensi and made it look like an outside attack. Another twist could be that the bullet was laced with a slow - acting poison, adding more drama to her survival struggle. Or perhaps the shooter was aiming for someone else, and Kensi got in the way accidentally, leading to a search for the real target.
Perhaps a new character who has a hidden agenda. Maybe someone who has a connection to a current case Gibbs is working on and doesn't want him to get too close to the truth. This person might be working for a larger criminal organization and sees Gibbs as a threat.
Well, one possibility is that his team members go into a full - on investigation mode to find out who shot him. They might follow some leads that initially seem promising but turn out to be dead - ends. Meanwhile, McGee could be in a critical condition in the hospital, with his life hanging by a thread, and his friends are all worried sick about him.
One common plot twist could be that Aria survives the shot but loses her memory. This then leads to a whole new set of relationships and self - discovery as she tries to figure out who she is and who would want to harm her. Another could be that the person who shot her is someone she thought was a friend all along, creating a sense of betrayal and mystery.
A plot idea could be that Ziva discovers she's pregnant during a dangerous mission. She has to keep it a secret not only from the bad guys but also from most of the team at first for fear of being taken off the case. Gibbs starts to notice her odd behavior and figures it out. They then have to work together to finish the mission while also protecting their unborn child.
One possible plot twist could be that the person who shot Shawn was someone he knew and trusted, like a former client who had a hidden agenda. Another twist could be that the shooting was a case of mistaken identity, and Shawn was actually targeted because of someone else's actions.
One idea could be that while Tony is sick, the team has to handle a crucial case without his usual on - the - ground assistance. They struggle at first but then find new ways to work together. Tony, from his sickbed, still manages to offer some key insights through phone calls or video chats.
Well, in the 'NCIS Abby gets shot' fanfiction, she might get shot while trying to protect one of her colleagues. Abby is very loyal and would put herself in harm's way for her friends. It could also be that she is lured into a trap and then shot as part of a revenge plot against the NCIS team. The shot could be life - threatening, leading to a tense race against time to save her in the story.