After an attack from Ultimo, Iron Man shrinks down to microscopic size in order to save Hawkeye's life. The Hacker endangers the mission when he takes control of H.O.M.E.R. and sends Ultimo after Iron Man.

After stopping an attempted coup, Tony discovers that secret Stark technology was being used by Crimson Dynamo. Feeling responsible for the misuse of his technology, Star decides to put an end to all other armored warriors in the world.