Fan CastingThe Amazing Colossal Man

A test explosion of the first atomic plutonium bomb is planned at a military site in Desert Rock, Nevada. When it does not detonate as expected, Lt. Colonel Glenn Manning receives orders to keep his men in the protective trench. Moments later, an unidentified small civilian aircraft crash-lands near the bomb site, and Glenn runs into the detonation area to rescue the pilot. Once in the detonation area, the bomb goes off, and Glenn is caught in the radiation. Surviving the blast but suffering from third-degree burns over most of his body, Glenn is treated by specialist Dr. Paul Linstrom and military scientist Dr. Eric Coulter at the army base hospital. Glenn's fiancée, Carol Forrest, anxiously awaits a prognosis, but Linstrom refrains from telling her that the consensus is that Glenn will not survive. The next morning, however, Linstrom and Coulter are stunned to discover that Glenn's burns have completely healed. That evening, Carol is prohibited from seeing him, and she learns that he has been moved to an army rehabilitation and research center in Summit, Nevada. She drives there and is admitted entry, and upon entering his room, she faints in horror when she sees he has mutated into a giant about 16 feet tall.