Steve Rogers, better known as Captain America, was a young but enthusiastic and selfless military trainee during World War II. When a spy for the Nazi science group Hydra attacked the boot camp he was being trained at, Rogers put himself in harm's way to rescue scientist Abraham Erskine and fellow soldier Bucky Barnes. This brave act of heroism is what caused Howard Stark to choose him for the secret "Super Soldier Project", enhancing Rogers to peak human condition. He was sent with a covert team known as The Invaders to shut down a Hydra experiment being carried out by Johann Schmidt. Rogers discovered that Hydra was attempting to create an interdimensional portal, and in the ensuing destruction of the portal generator, Schmidt had a powerful reactor core explode in his face. He survived,