During a space voyage, four scientists are altered by cosmic rays: Reed Richards gains the ability to stretch his body; Sue Storm can become invisible; Johnny Storm controls fire; and Ben Grimm is turned into a super-strong … thing. Together, these "Fantastic Four" must now thwart the evil plans of Dr. Doom and save the world from certain destruction.

An Argentinian girl, about to turn 18, leaves on a study trip to New York, and then decides to stay there. Her caring father goes after her to get her back before her mother can get too worried.