Perhaps there's a threat to global security in the form of a new virus that can be weaponized. The NCIS team discovers some local leads, while the Man from Uncle agents have intel on the international aspect. They team up, with the NCIS agents helping the Man from Uncle agents navigate the local law enforcement and military, and in return, the Man from Uncle agents provide their expertise in international espionage to track down the source of the virus.
A great plot could involve a mole situation. The NCIS team suspects there's a traitor within their ranks, and it turns out the mole is working with an enemy organization that the Man from Uncle agents are also tracking. So, they join forces to expose the mole and take down the bad guys. They could use the unique skills of both teams, like the forensics and investigation skills of NCIS and the espionage and undercover work skills of Man from Uncle.
One plot idea could be that the NCIS team is investigating a case that has international implications, and they cross paths with the agents from Man from Uncle. Maybe there's a high - tech weapon being smuggled that both teams are after. Another idea is a character - centric plot where an NCIS agent has a past connection to one of the Man from Uncle agents, and they have to work together despite their differences.
Another plot could involve a crossover with the 'Mission: Impossible' series. The IMF team and the U.N.C.L.E. agents could find themselves in a race against time to stop a powerful weapon from being launched. There could be a lot of high - octane action scenes and tense spy - vs - spy moments as they try to figure out who is on their side.
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.
One idea could be that the NCIS team is investigating a series of strange disappearances that turn out to be related to the experiments that created the Maximum Ride characters. The team could cross paths with the flock while trying to uncover the truth behind a shadowy organization involved in genetic manipulation.
One idea could be that a case in NCIS leads them to discover a secret project related to the genetic experiments in Dark Angel. Maybe they find a link between a murdered Navy officer and a group trying to recreate the transgenic experiments. So, the NCIS team has to work with Max from Dark Angel, who has her own knowledge and skills in this area.
A plot could revolve around a character from one show being framed for a crime, and the other team has to step in to prove their innocence. For example, a member of the Five - 0 team is wrongly accused of stealing military secrets, and the NCIS Hawaii team uses their resources to dig deeper and find the real culprit. This could lead to some great character interactions as they learn to work together.
One idea could be that a case in Boston (Rizzoli and Isles' territory) has connections to a military - related case that NCIS is investigating. For example, a murder victim in Boston turns out to be a former Navy officer, and both teams have to work together to figure out the motive and the killer. They might clash at first due to different investigation styles, but then gradually learn from each other.
One idea could be that the NCIS team is called in to investigate some strange magical occurrences in the wizarding world. Maybe they think it's some new form of high - tech weaponry at first but then realize it's magic. Another could be that Harry Potter and some of his friends end up in the NCIS world and have to work with the team to solve a mystery that involves both magic and muggle technology. For example, a dark wizard is using muggle technology to enhance his magic and they need to stop him.
One idea could be a crossover where the Ravenschild character teams up with the main characters from 'Man from Uncle' to solve a mystery that spans different continents. Maybe it involves a stolen ancient artifact that has some sort of technological secret within it.
One idea could be Ravenschild going on a solo mission that involves infiltrating a high - security enemy base. He could use his unique skills and gadgets to outwit the guards and steal crucial information.
McGee from NCIS is a good choice. His tech - savvy nature can be very useful in a crossover where high - tech gadgets and international threats are involved. He can interact with the Man from Uncle agents who are also used to dealing with advanced technology. On the Man from Uncle side, Waverly could be an important character. His strategic thinking and leadership of the organization can play a significant role when the two teams collaborate.