A more complex plot could involve a time - travel element. Xander could travel back in time in the Star Trek universe and accidentally change something that has a ripple effect on both universes. This would require him to team up with Star Trek characters to fix the timeline. It could explore themes of destiny, the importance of different cultures (from both Buffy and Star Trek), and how small actions can have big consequences across different fictional worlds.
One plot idea could be that Xander gets transported into the Star Trek universe. He could use his knowledge from the Buffyverse to help the Star Trek crew deal with some supernatural - like threats that they're not used to. For example, a creature that is similar to a demon from Buffy but with a sci - fi twist.
Maybe there's a situation where the technology from Star Trek is somehow brought to Sunnydale. The Buffy gang, including Xander, has to figure out how to use it to fight the vampires and other evil forces. This could lead to some really fun and creative scenarios, like using a Star Trek - style phaser to stun vampires instead of a stake. It would also involve a lot of character interactions as the Star Trek characters might have different ideas on how to handle the situation compared to the Buffy crew.
One idea could be that Buffy and her team are transported to the Star Trek universe. Maybe they have to fight vampires that have been affected by some sort of alien technology. Another could be that a Star Trek crew member visits Sunnydale and has to adapt to the whole demon - slaying thing. They could end up helping Buffy with some high - tech knowledge from the future.
You can try some popular fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfictions from various fandoms, including ones that combine Star Trek, Buffy, and Xander. Just use the search function and type in relevant keywords to find what you're looking for.
Perhaps a plot where Moriarty, Sherlock's nemesis, has somehow made his way into the Star Trek universe and is causing chaos. Sherlock teams up with the Star Trek characters, like Kirk and Spock, to outwit Moriarty. The contrast between Moriarty's devious mind and the more logical and ethical Star Trek characters would create a great dynamic, and Sherlock would be in the middle trying to stop Moriarty's evil plans.
Well, a cool plot for Star Trek Beyond fanfiction could be a crossover with another sci - fi franchise. Imagine the Enterprise crew meeting characters from, say, Doctor Who. They could team up to face a common threat that is beyond what either group could handle alone. Or, a story where the Enterprise gets stranded in a dimension where the laws of physics are completely different. The crew has to adapt and find a way to get back home while also dealing with the strange entities in that dimension. It would be really exciting.
Well, for a rollercoaster Star Trek fanfiction, there could be a plot where the rollercoaster is a training device for new Starfleet recruits. The main characters are sent to oversee the training, but something goes wrong with the rollercoaster's programming. It starts to create dangerous scenarios that the recruits must overcome. This not only tests their physical abilities but also their mental and moral compass. Another idea is that the rollercoaster is a relic from an ancient civilization that holds the key to a powerful energy source. The Star Trek team must explore the rollercoaster's inner workings, which are filled with puzzles and traps, to obtain the energy source before a hostile alien race does.
She could be pregnant with a half - alien baby, which causes a stir among different species in the Star Trek universe. Some might see it as a new opportunity for inter - species relations, while others could be fearful or prejudiced.
One idea could be that the Star Trek crew discovers a new planet where magic exists instead of advanced technology. They have to learn to interact with the magic - for example, the teleporters might malfunction in the presence of magic fields and they need to use magical portals to get around. Another could be a character from the Star Trek universe getting magical powers and having to deal with the moral implications, like whether to use it for the good of the Federation or for personal gain.
Well, in Star Trek fanfiction, a master PC can play a crucial role. For instance, it could be the central point of a story where the PC has stored classified information about a powerful and dangerous weapon. A group of rogue officers tries to access it, and the main characters have to protect the PC at all costs. Also, the master PC might be the only way to communicate with a lost colony that is cut off from the rest of the Federation. It could be malfunctioning, and the crew needs to repair it to re - establish contact.
One idea could be that the Starfleet crew discovers a strange energy signature that turns out to be related to a Marvel Infinity Stone. Maybe the crew has to team up with the Avengers to keep the stone from falling into the wrong hands. Another plot could involve a transporter accident that sends a Star Trek character into the Marvel universe and they have to find a way back while getting involved in a local Marvel - style conflict.
One idea could be a situation where the crew has to sacrifice one of their own to save the entire ship, but they can't decide who. Another could be facing an enemy that is unbeatable in traditional ways, forcing the crew to think outside the box and use diplomacy in a really tough situation. Maybe a no - win scenario where they have to break one of their most important ethical rules to survive.