The Marine Corps apparently believes constant sneezing could hinder military effectiveness, leading to the dismissal of “Truesmith” (Eddie Bracken), who suffers from chronic hayfever. He isn't a coward, and feeling embarrassed, he buys drinks for some soldiers at a bar. They feel sorry for him and devise a plan that will allow him to return home to his grieving mother (Georgia Caine) with dignity intact. As the train…