In a Spiderman and Totally Spies crossover fanfic, the plot could involve a mad scientist who has created a formula that can turn people into mind - controlled minions. This scientist is targeting both superheroes and spies. Spiderman first notices the strange behavior of some of the city's inhabitants. At the same time, the Totally Spies are investigating the disappearances of some important people. They meet when they are both lured into a trap by the scientist. Spiderman uses his super strength to break free, and the Totally Spies use their escape gadgets. They then join forces. The Totally Spies infiltrate the scientist's lair to find the antidote, while Spiderman distracts the minions outside. Through their combined efforts, they manage to reverse the effects of the formula and stop the scientist.
The plot could start with the Totally Spies being sent to New York to retrieve a powerful device that has fallen into the wrong hands. Meanwhile, Spiderman is also after the same device because it could be used to create a super - weapon. They meet in an alleyway where there is a skirmish between Spiderman and the goons guarding the device. The Totally Spies initially think Spiderman is a threat but soon learn that he is on their side. They then form an alliance. The Totally Spies use their hacking skills to disable some of the security measures around the device, while Spiderman battles the main villain who is trying to activate the weapon. Together, they succeed in getting the device back and saving the day.
A possible plot could be that there is a threat to the world that involves both superpowers and high - tech espionage. The Totally Spies are called in to investigate the technological aspect, while Spiderman is already on the scene dealing with the super - powered part of the threat. They cross paths and at first are not sure if they can trust each other. But as the situation worsens, they realize they need to work together. They combine their unique skills, like Spiderman's web - slinging and the Totally Spies' ability to blend in and use advanced gadgets. In the end, they defeat the common enemy.
One possible plot is that a mad scientist creates a device that can manipulate time. This device falls into the wrong hands and starts causing chaos in both Gotham and the places where the Totally Spies operate. Batman and the spies get caught in the time - warped events. They have to figure out how to reverse the effects while also dealing with the changes in the timeline that are making their enemies stronger. The fanfic could explore how they adapt to these changes and use their unique abilities to save the day.
One idea for a Spiderman and Totally Spies crossover fanfic could be that the Totally Spies are on a mission in New York. They accidentally stumble upon one of Spiderman's battles with a villain. Spiderman is initially suspicious of them but soon realizes they have the same goal of protecting the city. They then team up, with the Totally Spies using their high - tech gadgets and Spiderman his superpowers to take down the bad guys.
Well, perhaps a mad scientist creates a portal that connects the two universes of The Loud House and Totally Spies. The Totally Spies are lured into the portal and end up in Royal Woods. They meet the Loud family and soon realize that the same scientist is planning to use a powerful device in Royal Woods to control the minds of people all over the world. The Loud kids and the spies then form an alliance. The spies teach the Loud kids some basic self - defense and spy techniques, while the Loud kids show the spies how to blend in with the local community and use everyday objects as tools to stop the scientist.
One interesting plot could be that an ancient artifact has been stolen. The Totally Spies are on the case because it has some high - tech implications, while Martin Mystery is interested because it has a dark and mysterious past. They both follow different leads that eventually converge at an old, abandoned castle. There, they have to fight off various traps and enemies, both normal and supernatural, to get to the artifact and stop the villain who plans to use it to gain ultimate power.
One possible plot could be that the Totally Spies girls are on a mission to stop a new villain who has some high - tech gadgets. Spider - Man accidentally stumbles into their mission while chasing a petty criminal in the same area. At first, there's some confusion and mistrust between them, but they soon realize they can work together. The Totally Spies share their intelligence on the villain's lair and Spider - Man uses his super strength and web - slinging to help them infiltrate it.
One idea could be that the Totally Spies girls are on a mission in New York and accidentally cross paths with Spiderman. They initially mistake him for a villain but soon realize he's on their side. They then team up to take down a common enemy who is using both high - tech gadgets and super - powered minions.
A crossover with Sailor Moon might also be cool. The Totally Spies could find themselves in the Sailor Moon universe and have to help the Sailor Scouts fight against a new enemy that is after some powerful artifact in both their worlds. The spies' espionage skills would be useful in gathering information about the enemy's plans, while the Sailor Scouts' magical powers could be used in direct combat.
One idea could be that the Loud sisters get recruited by WOOHP. Maybe Lincoln accidentally discovers a WOOHP gadget and the spies come to retrieve it. They notice the Loud sisters' unique skills and talents. For example, Lori's bossy nature could be useful for leading missions, and Leni's fashion sense could help with disguises. They all team up to stop a villain who is using a new technology to take over the world.
One great plot idea could be that the characters from Young Justice and Totally Spies are brought together by a common enemy. Maybe a powerful villain has a plan that affects both their worlds, like a device that can mind - control both superheroes and spies. So they have to combine their skills to stop it.
Perhaps in a fanfic, Todd has a secret that only Red discovers. This secret could be related to his past or some special power he has. Red helps him deal with it, and through this process, they grow closer. Their relationship could be a slow - burn one, starting from friendship and gradually evolving into something more romantic as they go through various adventures and solve spy - related problems.