Undersea Kingdom - Ray "Crash" Corrigan, Lon Chaney, The Full 12 Chapter Serial

Lieutenant "Crash" Corrigan is invited by Billy Norton to visit his father, Professor Norton who is demonstrating his new invention which can detect earthquakes, and sharing his ideas about where he thinks Atlantis used to be. They lead a team to investigate and "Crash" ends up trying to stop an evil tyrant ruler of Atlantis from conquering the lost continent and then the entire upper world.