The Stronghold of Dr. Strange!
While showing off his powers for the patients at a hospital for orphaned children, Iron Man falls under the mental influence of "Dr. Strange", who commands him to break Strange out of prison. The hypnotized hero obeys, regaining his senses only after Strange is long gone.
From the safety of island fortress, complete with it's own force field, Strange issues an ultimatum: the nations of the world must surrender to him within 24 hours, or he will destroy the planet. Iron Man sneaks underwater and manages to find Strange. Doctor Strange takes away the electricity powering Iron Man's battery, almost killing him, but then Strange's daughter gives Iron Man a torch. He then uses the batteries to pwoer up, and Strange flees since Iron Man is at full strength.
The Sorcerer's Plot
The End of the Universe!