In a Nazi-ruled alternate history: the rebels assaulting the front gate of Stark Industries are pinned down by enemy fire when Captain America arrives to take out the machine gun nest and lead the resistance into the complex. The elite Iron Men arrive on the scene bringing despair to the hearts of the heroes; Cap turns over to Henry Pym the device Tony Stark had given him. The device shuts off the power to the armored foes and they plummet to the ground. Cap leads the resistance fighters toward the lab where Doom’s time machine is housed.
There, the Red Skull is enraged by reports of successful anti-Nazi uprisings around the country. He pressures Victor Von Doom to hurry so he can send his Elite Squad back to 1945 to kill Captain America. The invaders encounter a guarded force-field portal at the entrance to the lab. Sue Storm pretends to be a subject for the breeding program and vamps the guards into opening the portal, at which point she seizes a weapon and shoots them down. Entering the lab, the resistance fighters halt the time project and battle the Nazis. Hank Pym is shot; an enraged Bruce Banner smashes the controls causing the panel to explode in Doom’s face, burning him severely. Don Blake arrives to tend to Henry’s wounds and informs the rest that Tony Stark died a hero’s death. The Red Skull seizes Bucky as a hostage but Cap flies into a rage at the thought of his partner dying and attacks the Skull sending them both into the well where the time machine is out of control. Locked in combat, Captain America and the Red Skull are drawn through the time platform and vanish….
March 1964: the Avengers’ submarine recovers a man frozen in a block of ice, floating in the water. Taken aboard the sub, Captain America is revived…and the rest is history.