Lt. Col. Glenn Manning is inadvertently exposed to a plutonium bomb blast at Camp Desert Rock. Though burned over 90% of his body, he survives, and begins to grow in size. As he grows, his heart and circulatory system fail to keep pace with his growth, and he is gradually losing his mind as a result of reduced blood supply to his brain. He reaches 50 feet tall before his growth is stopped. By this time he has become insane. He escapes and wreaks havoc upon Las Vegas before he is finally stopped. Written by
Teresa E. Tutt <firstname.lastname@example.org>
Savage Giant on a Blood-Mad Rampage!
See more »
Did You Know?
The Colossal Man is never referred to as such in this movie. He's referred to only as Colonel Manning or the Giant. See more
Plutonium was used in the first A-bomb in 1945, not for the first time in the '50s. See more
Why don't you ask me what it feels like to be a freak?
Referenced in Cinemania