The Phantom from 10,000 Leagues

Freezing horror! Hideous atomic mutant strikes from the depths!

An unusual radioactive rock on the sea bottom mutates the ocean life into a horrible monster. When charred, radioactive bodies begin to drift ashore a scientist and government agent investigate the phenomenon, and it's connection to a local marine biology professor.

Monster from a Prehistoric Planet

Even mightier than 'King Kong'!

An expedition in the South Pacific lands on a tropical island where the natives worship the mysterious deity Gappa. An earthquake opens up an underground cavern and a baby reptile is discovered inside. The natives warn the foreigners to leave the hatching alone, but they don't listen and take it back to a zoo in Japan. Soon after, moma and papa Gappa start smashing Tokyo looking for their kidnapped child.