The American Soldier and Captain America

Thalleous Hawk was just like his friend Steve Rogers, weak looks but they both have the same motives to protect and serve there country as unlike their friend Bucky Barnes, the military denied their applications. But what happens when a doctor proposes them a way to give a chance to matter and make a impact in the war. What is this serum that they were injected with? What if this is only the beginning of their very long journey?