"Roy" (James Hall) and his brother "Monte" (Ben Lyon) are pretty much joined at the hip with the former frequently having to bail his rather wayward brother out of the stew now and again. He even has to fight a duel for him! Anyway, they both join the Royal Flying Corps just ahead of the Great War and both volunteer for an highly dangerous mission over occupied territory. Meantime, "Roy" is dating the rather fickle but candid "Helen" (Jean Harlow) who is also not averse to a bit of a dalliance with "Monte". The rather rakish brother gradually realises that his brother deserves better, and so…