One interesting plot could be a war vet who, after coming back from war, finds solace in the adventures of Spider - Man. He starts to see parallels between his own battles and the ones Spider - Man faces in New York. Maybe he even imagines himself having Spider - Man's powers to deal with the PTSD and the challenges of readjusting to civilian life.
A possible plot is that the war vet, due to his combat skills and strategic mind, becomes an unexpected ally to Spider - Man. He could use his military knowledge to help Spider - Man in a big battle against a super - villain who has a military - like operation. This would involve a lot of action - packed scenes where the vet's skills are put to good use alongside Spider - Man's super - abilities.
A war vet can be incorporated as a mentor figure. He could teach Spider - Man some combat techniques he learned in the military. For example, hand - to - hand combat moves that are different from what Spider - Man already knows, which would make him more effective in close - quarter battles.
One common theme is redemption. The war vet Spiderman may have done things in war that he regrets, and time travel gives him a chance to fix things or make amends. Another theme is the clash of values. Different eras have different values, and as he travels through time, he has to reconcile his modern - day values with those of the past.
One possible plot could be that Spider Man is captured by a new super - villain who has a personal vendetta against him. This villain might have studied Spider Man's weaknesses and uses them to his advantage. Another plot could involve Spider Man being captured while trying to protect someone, like a civilian or a fellow superhero. Maybe he's caught in a trap set by an old enemy who has come back with a new and more devious plan.
One interesting plot could be Spider Man's identity being revealed to a select group of people who then have to protect his secret from a powerful villain who would use it against him. For example, his closest friends might find out and have to deal with the newfound knowledge while also facing threats from bad guys trying to get to Spider Man through them.
One interesting plot could be Spider Man facing a new villain that has powers related to time manipulation. This would create a whole new set of challenges for him as he has to not only fight the villain but also deal with the disruptions in time. Another plot might involve Spider Man teaming up with an unexpected ally, like a reformed criminal who has unique skills that help in taking down a powerful crime syndicate. And there could also be a plot where Spider Man loses his powers temporarily and has to rely on his wits and the help of his friends to still protect the city.
One possible plot could be that Spider - Man accidentally hypnotizes a villain into becoming his ally for a short time. This could lead to some comical situations as the villain tries to adapt to their new 'good' self.
A possible plot is that a powerful alien force arrives on Earth. Spider - Man and Mantis are brought together by the Avengers to handle this threat. Mantis can communicate with the alien in a way others can't due to her unique abilities. Spider - Man, on the other hand, has to figure out the alien's weaknesses. They work together, with Mantis guiding Spider - Man's actions based on what she learns from the alien, and Spider - Man using his scientific knowledge and combat skills to develop a strategy to defeat the alien.
One great war vet Spiderman time travel fanfic is 'Spiderman: Through the Wars of Time'. It has an amazing plot where Peter Parker, as a war vet, gets sent back in time during a battle. The author does a great job of showing how his combat skills and Spiderman abilities interact in different historical settings.
Perhaps a plot in Ultimate Spider - Man Vol 3 Fanfiction is about Spider - Man getting trapped in an alternate dimension. In this dimension, the rules are different, and he has to figure out how to get back to his own world while also dealing with the strange inhabitants and new threats there. It could also be interesting if there was a plot where Spider - Man has to deal with a virus that affects his powers, causing them to be unpredictable. He then has to find a cure while still protecting the city.
One interesting plot could be Spider - Man struggling with the new powers and responsibilities that come with being the Herald of Galactus. He might have to face his friends' distrust as they see him associated with such a powerful and often - feared cosmic entity. Another plot could involve Spider - Man using his new - found cosmic powers to protect Earth from threats that are beyond the scope of his normal abilities, like an invasion of powerful inter - dimensional beings.