Perhaps the memory of Bucky's time as the Winter Soldier being forced to carry out assassinations. It would show the Avengers the extent of his victimization and how little control he had over his actions, which could lead to more empathy and understanding within the group.
One really impactful memory could be of Bucky's pre - Winter Soldier days. His friendship with Steve Rogers, the simple times before his life was turned upside down. This would give the Avengers a better sense of who Bucky really was at his core, and how much he has lost. It might also strengthen Steve's resolve to protect him even more, and make the other Avengers see the importance of restoring Bucky's true self.
Thor would likely be enraged. He has a strong sense of justice, and seeing the torture Bucky endured would make him want to seek vengeance on those responsible. He might also see Bucky in a new light, as a survivor of great pain and suffering.
Well, in such a fanfic, Bucky could bring in new perspectives to the Avengers. He has his own set of skills and experiences from his time as the Winter Soldier. He might introduce some new combat tactics or ways of handling dangerous situations. Also, there could be a plot where Bucky is hunted by some old enemies, and the Avengers have to decide whether to protect him or not. It could lead to internal debates within the group, which would be really exciting to read about.
Well, it could be that Bucky has some hidden memories related to the Pentagon. Maybe there are secrets there that could clear his name or reveal some dark operations Hydra was involved in within the Pentagon. The Avengers break in to help Bucky uncover the truth. They might face various security measures and government agents who don't understand their motives at first.
They might be shocked at some of the dangerous situations Peter has been in without their knowledge. They could feel guilty for not being there to protect him more. And they would likely be very proud of his selfless acts.
They might be in shock. Tony has a complex past, and seeing it all unfold could leave them speechless.
In this kind of fanfiction, the rogue Avengers might feel remorse. As they watch Tony's memories, they could see the events from his perspective. Maybe they realize how their actions had a negative impact on him and the team. They might start to question their own motives and decisions that led to the rift among them.
One common theme is redemption. Both Bucky and Wanda have complex pasts. In fanfics, they often strive to make up for the things they've done or that have been done to them. For example, Bucky was a brainwashed assassin, and Wanda has caused destruction accidentally. So they try to find their place in the world again.
Vision could also have an interesting interaction with Bucky. Vision is an android with a unique perspective on life and morality. He might be curious about Bucky's past as the Winter Soldier and how he is dealing with his regained humanity. Their conversations could be really thought - provoking, exploring themes like what it means to be human and how to atone for past wrongs.
It could be a high - ranking military official who believes the Avengers are a threat and is determined to stop them at all costs. This person might see Bucky as a dangerous weapon and want to capture or eliminate him.
In this kind of fanfiction, the Avengers might gain a deeper understanding of Peter. They could see his struggles, like dealing with school and his superhero identity. Maybe they'll be surprised by his determination and how he copes with the loss of his loved ones.