With the Crusader on the loose seeking revenge on those who he believes have wronged him in the past, Reed Richards heads toward Washington Square Park in Greenwich Village to search for clues. There he finds the wife of Calvin McClaren. Seeing McClaren being pulled away in an ambulance alive but seriously injured, Reed questions his wife. He learns that her husband is the owner of the Franklin Peirce National Bank chain. She tells him that the Crusader's voice resembled that of an old friend of Calvin's, a scientist named Horace Grayson, who during the outbreak of World War II came to Calvin for a loan to complete a rocket ship he was seeking to build in order to leave Earth. The loan was declined, however the steadfast scientist disappeared weeks late with his infant son and were never heard from again.

With this bit of evidence, Reed goes back to the Fantastic Four to search for the Crusader as a group. Over the coming days the Crusader begins wrecking various Manhattan branches of the Franklin Peirce National Bank, always leaving before the Fantastic Four can arrive to stop him. Eventually Reed develops a device to track the solar radiation emitted from the Crusaders wrist bands, and realizes that the Crusader only comes out on sunny days making Reed realize that his bands are solar powered. When they detect he is attacking the Grover Cleveland Bank located in the Bronx, Reed sends Sue, Johnny and the Thing after him while he works in his lab. Along the way, Sue worries about how preoccupied Reed has been since their last battle against Dr. Doom, and wonders if everything is all right with her husband.

When the Crusader attacks the bank he finds the three members of the Fantastic Four waiting for him. When he tries to blind them with his wrist bands, he finds that it is ineffectual thanks to special contact lenses that Reed developed to protect their eyes. Needing more sun light, the Crusader goes to the roof with the Human Torch following after him. Goading him by mentioning Horace Grayson's name the Crusader tells the Torch his origins: He explains that he is the son of Horace Grayson, a man who built a rocket to fly to Uranus to escape the horrors of the coming World War. There they found the planet populated and were welcomed in by the Uranians. He would grow up to become the champion known as Marvel Boy and briefly become a crime fighter on the planet Earth during the 1950's. He would ultimately return home to Uranus until the people of his adopted world would suddenly fall ill. Returning to Earth to attempt to get a loan for medical supplied to help the people of Uranus, Marvel Boy would seek one from Clarence McClaren and once more be rejected. He would return to Uranus empty handed to find that the protected city had been destroyed and everyone he loved dead. Wanting revenge he would rush back to Earth in his ship, however it would pass through the tail of the comet Kohoutek and Marvel Boy would be put into a state of suspended animation and his ship thrown on a random course until it eventually crash landed on Earth in modern times. Alive and still youthful and dubbing himself the Crusader, Marvel Boy went about his mission of revenge against those he held responsible for the death of his people.

This explanation proves distraction enough for Sue and Ben to make it to the roof to attack the Crusader. When the Crusader tries to counter attack, Johnny points out an artificially created cloud that Reed has made to block the Crusader's power. Furious that they realized his weakness, the Crusader flies back into the bank in order to finish the job before his power runs out. The Thing jumps down and battles him draining his powers further. Managing to defeat the Thing, the Crusader rushes outside hoping to escape only to find Mr. Fantastic, Invisible Girl and the Human Torch waiting for him. Deciding enough is enough the Crusader turns up his power bands and attacks, Only to be defeated and killed.

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