Mission Title: The Impervium Initiative

Hydra has launched a surprise, coordinated blitz on a high-tech sector, pinning down the full roster of the Avengers with heavy-duty kinetic armaments specifically designed to counter their powers. Just as the battlefield descends into chaos, a mysterious, ground-bound powerhouse arrives. Forged in an unbreakable metal compound and wielding devastating twin blades, this unknown warrior cuts through the Hydra forces in a matter of minutes. Left standing in the aftermath of a bafflingly quick victory, the world's mightiest heroes are desperate to learn the identity of their sudden savior.