The Duke comes out of the 19th century for the first time and plays a HUAC investigator checking on Communist infiltration in Hawaii. Also starring is James Arness (gunsmoke) as his partner. Believe it or not Hollywood portrays HUAC investigators as the heroes and communists as slimy nazi types. Good entertainment even if you root for the commies.
The movie was produced by ultra-conservatives in Hollywood with the full cooperation of the House Unamerican Activities Committee. The production includes a strange mix HUAC supporters and those seeking to prove themselves anti-communists. It was not one of John Wayne's better movies. He of course played John Wayne as he did in all of his movies. The story is fairly good but it reeks of propaganda. The movies interesting for historical reason but that's about it. For good Wayne movies watch any of John Ford's movies with Wayne.