Disclaimer: I do not own Ben 10 or Marvel Characters

1941

Steven Grant Rogers had gone through near countless numbers of experimental surgeries and treatments to prepare his body for the Super Soldier Formula that would soon be injected into him.

Doctor Abraham Erskine had been working on a similar serum on his own and was on the verge of success when the United States Air force recovered the remains of a crashed UFO. Inside was a canister of some strange energy.

Upon inspection it was discovered that the energy could hyper evolve any species, the problem was that the affects would where off eventually.

But Erskine's serum could make the affects permanent allowing an ordinary man to become the ultimate human being.

Steve Rogers was selected for the experiment.

"Are you ready Steven?" Erskine asked the young man who was preparing to be bathed in the strange energy.

"As ready as I'll ever be Doc" the young man said.

And with that he was doused in the blue energy.

Almost instantly he gained larger muscle mass and a healthy complexion.

And that was the origin of the World War II hero Captain America.

However having just one Super Soldier put the allies in a bit of a pickle, sure they had a superhero, but the Axis had begun to create villains with incredible powers and alien allies. So it was decided to use Captain America as a comic book character and keep the fact that he actually existed a secret while basing his comic adventures on his actual actions during the war and hiding other events.

In early 1945 when he was presumed to die disarming a nuclear bomb created by Baron Zemo, the comic company kept reprinting old issues before printing one where it told readers that the fictional Captain America had died.

If only the world had known the truth…

Modern Day

"Kevin, aren't you going to help?" Gwen asked the black haired teen who was reading a comic while she and Ben cleaned out a storage unit for their Grandpa Max.

"What are you reading anyway?" Ben asked

"An old Captain America comic, Max has a box full of them" Kevin said.

"Captain America? Wasn't that cancelled after World War II ended?" Ben asked, he always thought the name was cheesy.

"Yeah, but this is a little weird"

"What is?" Gwen asked with her face showing confusion

"In this one the Nazi's have made a deal with this alien for some tech to help fight the allies, so Captain America goes to fight them and eventually he comes face to face with the alien and it looks like fourarms" Kevin turned the book so they could see

"Wow, it really does" Ben said "What a coincidence"

"Maybe not" Kevin said reaching into the pile and pulling out another one. This one showed a molten alien with a swastika symbol on it's chest.

Bens eyes widend "That looks like Heatblast!"

"Yeah, I know I was thinking that maybe we should ask Max why so many aliens seem to be appearing in a 1940's comic"

"I'm with Kevin on this one, this can't just be a coincidence" Gwen said grabbing another book which showed what looked like several Big Chill's

Ben laughed "What are you saying, that Captain America's real?" the thought of that was just ridiculous!

Near Norway

A U.S. Navy Submarine maneuvered through the Ice.

Colonel Smith had done this mission sweep many times, as had many others before him over the last 70 years.

None had found what they were looking for and he didn't expect to find it himself.

When he had first began working on this mission he was just a sergeant who followed orders and had found the ice disturbing and unnerving. Now he commanded the very sub he had served on and now continued the mission of his predecessors at the behest of the President himself and his predecessors.

He began to think about the next 10 years he had to spend on this sub before he would be allowed to retire, the only way he could get a new job somewhere else would be to find the item in question and he didn't think that would ever happen.

"Sir, we've found something!" one of his subordinates shouted.

He practically jumped out of his chair.

"What is it?" he asked with a level of excitement

"Don't know, our scanners just picked it up. We're sending the probe now"

The probe was armed with a laser to melt through ice and it did its job fine.

Soon enough they got a visual.

At the sight before him the Colonel smiled before activating the speakers to address his crew. "Prepare for a celebration tonight folks! We have found the item! We have found Captain America!"

Cheers were released by everyone onboard as the probe prepared to remove the Captain from the ice.

Okay, sorry it's been a while folks, I recently started back at College so I haven't really had time to do this but this is my Marvel version to Secret Origins where the origins of various Marvel heroes will be told in the Ben 10 universe.

Now for this Cap he has essentially the powers of Ultimate Captain America and is even more powerful in some regards.

This is something I'll do on the side similar to Secret Origins as I have other stories that are my priority, but I'll do this when I can

Which heroes or villains should I do next?