Fantastic Four Vol. 1 (1961-1996) #367

Plot

As Mr. Fantastic calls all of earth's heroes together to Four Fredoms Plaza for a meeting, Sue realizes that there is something terribly wrong with her husband (he was replaced by an evil doppelganger last issue); After a tense meeting with Shary, the Thing battles his own evil double and triumphs only with a little help from the Puppet Master; At the superhero summit, a battle breaks out as Mr. Fantastic and Iron Man are revealed as imposters; Reed detonates a Gamma Bomb in order to kill everyone.