Crash Corrigan, a recent graduate of Annapolis, and Diana, a go-getting reporter, join Professor Norton for a search for the source of a string of earthquakes, Atlantis. They ride Prof. Norton's rocket submarine searching the sea and little Billy Norton, the professor's son stows away, of course. When they find Atlantis they are caught in a war between peaceful Atlanteans, note their white capes, and war-monging Atlanteans, note their black capes. After many harrowing moments for Crash, Diana, Prof. Norton and Billy, they barely get away with their lives when they escape a tower of Atlantis raised to the surface for the sole purpose of dominating or destroying the Earth (Which one depends on the compliance of the upper world dwellers.)
Ray Corrigan
Lois Wilde
Monte Blue
William Farnum
Boothe Howard
Raymond Hatton
C. Montague Shaw
Lee Van Atta
Smiley Burnette
Frankie Marvin
Lon Chaney Jr.
Lane Chandler
Jack Mulhall
John Bradford
Malcolm McGregor
Ralph Holmes
John Merton
Ernie Smith
Lloyd Whitlock