After the four astronauts of Reed Richards, Susan and Johnny Storm, as well as Ben Grimm teleported to another universe and thereby exposed to a dangerous cosmic radiation, change their physical properties. You become the fantastic four: Reed is to Mister Fantastic, whose is henceforth characterized by incredible elasticity; Susan can itself (which is why she invisible woman is called also the) make invisible force their minds and create force fields. Her brother Johnny can burst into flame upon request itself. He is the human torch. Ben makes it the worst: the rays leave transformed him into an incredibly strong, but Monster. From now on, his name is the thing.