synopsis:
At Ryker's Island Prison, Franklin Storm's cell is invaded by the mysterious being. Before he can react, Franklin is teleported away, and the intruder takes his form. The next morning, Sue and Johnny visit the warden's office, where Sue finally reveals the truth about their father: Twenty years ago, he and their mother were involved in a car accident. Surgery proved futile, and Franklin was unable to save Mary's life. Distraught by his wife's death, Franklin became addicted to gambling, racking up a massive debt. When a mobster came looking for him to pay up, the two got into a scuffle and the mobster's gun went off, killing him. Still grieving over the death of his wife and ashamed of what he had become, Franklin Storm said nothing in his own defense, and was sentenced to prison for manslaughter. With the story out in the open, Sue and Johnny visit the man they think is their father, to inform him that they are going to try to get him paroled early. However, the impostor tells them that he won't have to wait that long, and surprises them when he suddenly turns invisible and busts through the prison wall and escapes. As the rest of the Fantastic Four are summoned, "Franklin" assumes a costumed form and calls himself the Invincible Man. With all the powers of the Fantastic Four, he terrorizes the people of New York.