After losing to Iron Man, Vanko defected to the United States out of fear that his superiors would kill him for failing. Vanko began to work for Tony Stark as one of his chief scientists. Eventually, the two became friends and Vanko developed pride and admiration for his new home. Unfortunately, soon the Soviets came for Vanko, just as he predicted. The KGB sent their top agent Black Widow as well as Boris Turgenev to apprehend him. Vanko died saving Iron Man by firing an unstable, experimental laser pistol at Turgenev, killing himself in the process.