Dr. Magneto, a scientist with a gun capable of magnetizing and demagnetizing various objects, plans revenge upon the world for ridiculing his theories. He causes a rail bridge to collapse, then lifts and drops a statue from high altitude, but Spidey arrives on the scene and prevents Magneto's schemes from causing loss of life. Then, Spidey confronts Magneto in a museum and, with a dense, anti-magnetic webbing, smashes Magneto's magnetizing gun. He then webs Magneto in the usual manner and places the disgraced scientist on a pedestal in the museum for police to apprehend.