House Un-American Activities Committee investigators Jim McLain and Mal Baxter come to post war Hawaii to track Communist Party activities even though belonging to the party was legal at the time. They are interested in everything from insurance fraud to the sabotage of a U.S. naval vessel.
John Wayne
as Jim McLain
Nancy Olson
as Nancy Vallon
James Arness
as Mal Baxter
Alan Napier
as Sturak
Veda Ann Borg
as Madge
Hans Conried
as Robert Henried
Hal Baylor
as Poke
Gayne Whitman
as Dr. Gelster
Gordon Jones
as Olaf
Robert Keys
as Edwin White
John Hubbard
as Lt. Cmdr. Clint Grey
Soo Yong
as Mrs. Namaka
