Plot
Archeologists uncover a giant dinosaur that was considered an "Arctic Giant" frozen in perfect condition in Siberia, and bring it to the Museum of Natural Science in Metropolis where it was claimed to be a Tyrannosaurus. It is kept frozen using special refrigeration equipment in a special wing of the Museum of Natural Science. Perry White sends Lois Lane to do a story on the dinosaur exhibit where there is a chance that it might still be alive if the ice around it melted. Clark Kent offers to come with her, but Lois turns him down, saying he might faint at the sight of the creature.
While Lois is shown around the museum's refrigeration plant, a carelessly placed oil can falls into the turbine. The workers turn off the equipment so they can repair the damage, and the temperature rises melting the ice around the monster as the museum patrons are evacuated by the security guards. The revived "Arctic Giant" destroys the entire building, leaving Lois in the rubble. Police attempt to shoot it down, but the bullets have no effect as the giant monster crushes their cars under its foot and beings to wreak havoc in the city.
Word of the museum disaster reaches the Daily Planet . Clark uses a closet to change into Superman and hurries over to the museum to rescue Lois and the other visitors from the rubble. He tells Lois to get to safety and she assures him she will, but in fact has no intention of abandoning the story.
After the monster destroys a dam neighboring a town, Superman stops the flood by pushing a giant boulder in to fill the gap. Police and firefighters try and fail to stop the monster as it breaks through a suspension bridge, endangering several motorists. Superman catches the falling bridge and ties it back together as the monster approaches a packed stadium. Superman uses one of the bridge cables to lasso the legs of the monster causing it to fall, crushing cars and a gas station on the way down. While Superman ties up the giant dinosaur, Lois approaches to take a photo of the fallen Tyrannosaurus but almost gets eaten. Superman flies into its mouth and saves Lois and then pins the head of the Arctic Giant down with a lamp post, ending the danger.
A news article by Lois Lane states that Superman subdued the Arctic Giant which is being held at the Metropolis Zoo as a picture shows it in its exhibit restrained with strong shackles. Clark commends Lois for her courage in getting the story. Lois asks where he was during the crisis, Clark replies "Me? Oh, I must have fainted." Then he winks to the viewers.