Meet the mechanical menace as he targets Earth's Mightiest Heroes with his own android creation, the Vision! There's poetic justice in store in this classic tale – but there's no keeping a bad robot down! The ever-evolving enemy returns – turning Iron Man against his allies, replacing an all-new Avengers team as the world's protector, joining the Masters of Evil and wreaking revenge on the Vision! Worst of all, when poor Virginia's android goes wrong, the sinister Santron wishes the Avengers a good fright!
Collecting: Avengers (1963) #57, #202; Marvel Adventures the Avengers #1 & #4; and material from Marvel Holiday Special 2005 and Marvel Universe Avengers Earth's Mightiest Heroes #10