Acting
John Ireland's thousand-yard stare carries the whole thing
Practical Effects
Chaotic firefight sequences shot on obvious California hills
Editing
Tight 72-minute runtime wastes absolutely zero time
Director
Cy Roth
Trivia, insights & behind the scenes
Director Cy Roth later sued Columbia Pictures for ripping off his WWII film concept for 'Halls of Montezuma' — he lost, but the pettiness is legendary.
Shot during the actual Korean War with military cooperation, making it essentially government-sanctioned propaganda with a B-movie budget.