Spider - Man could fit in as an unexpected ally. He could be in New York when the chaos of the Age of Ultron starts spreading there. His knowledge of the city's layout and his ability to move quickly through it could be very useful. For example, he could help evacuate civilians while the Avengers are fighting the bigger battles against Ultron's forces.
Spider - Man could also be inserted into the plot as a sort of wildcard. Maybe he has some sort of connection to the technology that Ultron is using. This connection could be something that he discovers accidentally. For instance, he could find out that a local Oscorp project has some link to Ultron's origin. So, he gets involved in the Avengers' fight against Ultron to figure out this connection and stop Ultron from using Oscorp's technology for further evil plans.
Spider - Man could use his agility. He could quickly dodge Ultron's attacks and find a weak spot in Ultron's armor. Since he's so fast and nimble, he could get in close and plant some sort of disabling device he made with his scientific knowledge.
One great storyline could be Spider - Man trying to prove himself to the Avengers during the Age of Ultron chaos. He might start off as an underestimated newcomer but then show his true worth by using his unique abilities like his spider - sense to detect Ultron's minions before the others. Another could be a story where Spider - Man has to rescue a captured Avenger from Ultron, using his agility and web - slinging skills to outwit Ultron's defenses.
In some fanfictions, Ultron might team up with one of Spider - Man's villains, like the Green Goblin. They could create a plan to take over New York. Spider - Man would then have to face this powerful alliance. He might seek help from other superheroes he's associated with, like Iron Man or Daredevil, to combat this new threat.
He could fit in as a mentor figure. His experience dealing with super - powered threats in his own world would be valuable. He could train the newer Avengers in hand - to - hand combat or how to handle situations on the street level.
In Spider - Man fanfiction, age can play various roles. For example, a younger Spider - Man might be more naive and impulsive, making different decisions compared to an older, more experienced one. It can also affect his relationships. A teenage Spider - Man might struggle more with balancing his superhero life and school, while an adult Spider - Man could face different challenges like career and family along with his superhero duties.
Mysterio would be an interesting villain for this fanfiction. He could use the chaos of the Age of Ultron to create illusions that further disrupt the city and make it difficult for Spider - Man to tell what's real and what's not. He might also be able to trick the Avengers into believing false threats, causing internal strife within the team.
Well, a fanfiction might explore Spider - Man's relationships within the Avengers during Age of Ultron. He's the new guy, so there could be some tension or bonding moments. For instance, he could have a heart - to - heart with Captain America about what it means to be a hero. Or he could have a friendly rivalry with Thor, competing to see who can take out more Ultron bots in a given time.
Spider - Man would likely be confused at first. He respects the Avengers and can't understand why they are suddenly after him. He might try to talk to them, to explain that he's innocent. For example, he could swing up to Captain America and start pleading his case.
Spider - Man would probably be shocked at first. He looks up to the Avengers and being kidnapped by them would be the last thing he expects. He'd likely try to talk his way out, using his quick wit and charm. He might start by asking why they're doing this and try to convince them that they've made a mistake.
Spider - Man would be very confused. He would feel betrayed because he thought the Avengers were heroes he could trust. He could start by asking them why they are doing this. If they don't give him a satisfactory answer, he might try to escape in a sneaky way, using his spider - like abilities to find a weakness in their capture setup while still trying to reason with them.