Rampaging robots run rampant as the Mad thinker takes over Iron Man's armour, forcing Hawkeye to team up with Tony Stark to bring down the most sophisticated and deadly weapon in the world. Meanwhile the tough and deadly Black Widow goes into action, protecting a secretive mystery man from the world's greatest assassins. Then, when Stark China's operations vanish into thin air, Iron Man must uncover who — or what — is responsible for strong holding his team of scientists.