Captain America is fighting a group of masked villains with his shield. They are trying to take over a police station in Bouton, Nebraska, to get national attention endangering a group of students on a school trip in the process. Cap hides most of the students in a room, then finds the missing two, hidden under a desk. He tells them not to be scared and to wait for him: he proceeds to knock out most of the rogues, but one of them shoots him and the girl, Donna, decides to protect the hero with her own body. Cap manages to shield her at the last second, telling her he's stronger, so he's the one protecting her and not the other way around. He reveals he's recently woken up from a long sleep (this story is, then, to be put in a distant past, in the very first days of the Avengers) and tells the kids to ask their grandparents for his name.
Ten years later, Steve Rogers goes back to Bouton only to realize they named the town he saved after him. It is today the 10th annual Captain America Celebration, so a Cap themed festival is ongoing. Steve is mistaken by everybody for a cosplay of himself, so he's able to walk around undisturbed. He talks to a guy who thinks the story about Cap being frozen for decades is a scam; then everyone listens to witnesses on stage talking about the time they were saved by Cap.
Suddenly, a Rampart militia goes on stage and their leader declares they're now ready for their plan and it's only fitting to begin right where they started. As he orders to open fire on the crowd, Steve destroys the guns lined up with his shield, and puts on his mask. After subduing the group easily, Cap tells the leader he knew all along they were probably going to show up, so he got there to stop them. He threatens the foe to tell him more about his group, and he answers "You'll learn more soon", blowing himself up.
Before leaving, Cap gives the people of the town an inspirational speech, in which he says: "We know what's right. The strong protect the weak. Never forget that". Donna, now a grown girl, answers: "That's the rule. Welcome back". (Pending Approval)