"A Child Shall Slay Them!"
A young boy struggles for his life as his condition baffles the doctors trying to treat him. They call in the FF and Reed tries to figure out what is afflicting the boy. But the trouble for the FF is just heating up as the boy creates his own FF using the strange cosmic energy that is causing the boy's illness. The new FF are evil and start to terrorize the city as the real FF engage them, but the real FF are no match for their twins. Reed gets an idea after he notices something strange about the evil twins. He comes back with one of his inventions and zaps the radiation from the evil FF as he heads back to the hospital where the boy is doing better. He suggests that the parents seek out Charles Xavier to help the boy with his mutant powers.