One possible plot could be that Captain America is in a situation where he accidentally injures a fan during a chaotic battle. Maybe he's fighting a powerful enemy in a crowded area and his shield goes astray. He then feels extremely guilty and tries to make amends by using his resources to help the injured fan recover. He might also face public backlash for the incident which adds to his internal struggle.
The plot could involve a mind - controlled Captain America. An enemy manages to gain control over him and forces him to attack a group of fans. Once he snaps out of it and realizes what he's done, he has to deal with the consequences. He could start a journey to find a way to reverse the damage he's caused to the injured fan and also clear his name from the public's negative perception.
In a fanfic, perhaps Captain America is testing a new weapon or a new combat move in a training area that is close to where fans are allowed to be. Due to an unforeseen miscalculation, a fan gets injured. Captain America then has to put aside his superhero duties for a while to focus on taking care of the injured fan. This could lead to a story about his humanity and how he copes with making a mistake outside of his regular battles.
It would show his sense of responsibility. If he injures a fan, he'd immediately feel accountable. He'd likely try to take care of the fan's medical needs, which shows his caring side. He's a hero, so this would be a huge blow to his self - image. The fanfic could explore how he deals with this guilt and self - doubt.
Well, perhaps in this fanfic, the values of Captain America from his own world collide with the somewhat different moral landscape of The Rising of the Shield Hero's world. He could try to reform some of the more unjust systems there. At the same time, he might learn new ways of combat from the Shield Hero, and they'd have to work through cultural differences while fighting common foes.
One possibility is that he wakes up and discovers new allies. The story could then revolve around him building relationships with these new characters while still holding onto his old values. He may also have to deal with the fact that the world has moved on without him and find his new place in it.
Well, perhaps Captain America could be on a mission to seek an ancient Asgardian weapon to help in the fight against a new threat on Earth. He might meet Thor and the other Asgardians, and have to prove himself worthy in their eyes, just like he did in his own world.
Well, in the fanfic, perhaps it starts with a mission where they are stranded together for a while. During this time, they really get to know each other on a deeper level. Captain America's old - fashioned values and Black Widow's more complex past create an interesting contrast. As they fall in love, they face some opposition from the outside world. Maybe some government agencies think their relationship could be a liability. But they don't care and go ahead with their marriage plans, which includes a big, elaborate wedding with lots of dancing and celebration at the end.
Well, perhaps there's a villain who creates a situation where Bucky is impregnated as part of a cruel plan. Captain America discovers this and is initially shocked but quickly resolves to stand by Bucky's side. They go on a journey to find a way to reverse the situation while also facing the challenges of hiding Bucky's condition from the public and their friends in the superhero community. And along the way, their relationship deepens in unexpected ways.
Well, perhaps a plot where they accidentally end up in an alternate dimension. In this dimension, their powers are different. Captain America might have some super - speed and Superman might have a more tactical mind like Cap. They have to figure out how to get back to their own dimension while also dealing with the villains of this new world. They learn from each other's skills and grow closer as friends throughout this adventure.
The Night King could be a great antagonist. His army of the dead and his own powerful magic would pose a huge threat to Captain America. Cap's used to fighting human foes, but the Night King is something entirely different.
He could also meet Odin. Odin might view Captain America as an interesting mortal from Midgard and might have some words of wisdom or a task for him to complete during his stay in Asgard.
One possible plot could be that they meet in an alternate universe where timelines have merged. Captain Carter and Captain America initially have a bit of a misunderstanding as they come from different versions of heroics. But then they realize they share the same values of justice and freedom. They team up to fight a common enemy that is threatening both their worlds, like a powerful time - traveling villain who wants to rewrite history to suit his evil plans.