Fantastic Four, Vol. 1

A strange energy sphere appears, and the FF investigate, only to find that it's a means for the Watcher to contact them. A new threat has emerged, in the form of the Molecule Man, a lab tech who has accidentally received the power to control molecules. The FF have a very difficult time fighting him, especially when he turns the city against them out of fear, but Reed deduces his weakness, and battles never seem to take long after that.