GAME STORY LINE :
In France 1944, two U.S. soldiers are attacked by HYDRA, but Captain America arrives to save them and fends off the Hydra forces before contacting Howard Stark with regards to the enemy weapons.
While in communication with Peggy Carter, Captain America learns that the munitions recovered from the battle came from the Bavarian mountains based on the rare metal used and is briefed on HYDRA scientist Dr. Arnim Zola's Project: Master Man, which involves unlocking the human genome's secrets and achieving immortality. Captain America drops down in a village near a Bavarian castle and disables the anti-air cannons so the Invaders can enter the village before proceeding to destroy a nearby armory to prevent the Nazis from receiving more weapons.
Making his way through Hydra forces, Captain America fights Baron Wolfgang Von Strucker, who manages to knock him unconscious. The former awakens in Zola's lab, with Iron Cross and Madame Hydra restraining him as Zola explains how he drew samples of the Captain's blood to recreate Dr. Abraham Erskine's Super-Soldier Serum and captured some of the Invaders before imprisoning Captain America. After escaping his cell and while making his way through the complex, Captain America rescues Bucky Barnes, who informs him that Dum Dum Dugan and James Falsworth, among other POW's, are being held captive nearby.
While Bucky rescues the POW's, Captain America rescues Dugan before pursuing Madame Hydra, who has taken Falsworth. He eventually reaches and fights her, though she escapes. Learning that Hydra's leader, the Red Skull, is arriving to see Zola's work and bringing the Cosmic Cube with him, Captain America decides to pursue him instead. He soon arrives in Zola's special lab, where he prevents Zola from giving the Red Skull a perfected Super-Soldier Serum and defeats Iron Cross. However, the Red Skull awakens the Sleeper, which destroys the lab and covers the Red Skull's escape while Zola activates a robot body for himself in another room. Surviving the destruction, Captain America pinpoints Falsworth's location in a nearby village.