Captain Preston Foster along with his aide M/Sergeant James Gleason are transferred to a horse cavalry fort which as progress deems is about to be turned into a place for that new mechanized warfare that tanks are bringing. The operation, repair, and maintenance of the tank will take the place of the horse. A fact resented on the post by nearly all from its commanding officer H.B. Warner on down.
Warner has a daughter in Madge Evans and Foster has a self imposed rule about dating army brats, but with a little sly trickery he and Evans are an item.
Things get serious though when on a final test the tank has an accident and both Warner and Gleason are killed. Foster is brought to court martial and nearly blows his career.
Certainly the tank proved its worth in the next year, unfortunately for the enemy. German tanks were infinitely the superior machine. The thought of that little job that Foster and Gleason drive around in going up against one of those panzer tiger tanks is laughable.
Army Girl got Oscar nominations for sound, musical score, and cinematography and did not bring anything home for Republic Pictures. And advances in mechanized warfare dated this film very quickly.