Richard Arlen is a hobo looking to join up to fight in the just started WW2. He meets up but Big Boy Guinn who is in the Navy Reserve and who manages to get Arlen into the service. What know one knows is that Arlen was an officer who went AWOL several years before and now is trying to hide his identity. Good, "rah rah" war effort film about the men who seek to defuse mines. A bit soapy at times with the tales of lost loves and noble sacrifice, this the sort of thing they don't make any more for a good reason, it can seem awfully silly. Running just over an hour the film moves along at a good clip and never over stays its welcome. Worth a look if you run across it and are in the mood for a wartime programmer.