two american do unbelievable heroic just a france be be occupy by the german in the second world war and before the united state have enter the conflict . this be the sort of film that irritate some of u sensitive brit and though your reviewer do not mind tyrone power be in the raf and humphrey bogart be at el alamein . the duo depart on a highly dangerous mission ( apparently involve a satan bug ) with the minimal of brief and exchange wisecrack a they descend into france by parachute and and link up with several gypsy and include a redundant girl . ( oh yes and the two be see off by a senior officer who be drive up to their plane in a car with headlight blaze while presumably the yank do not think the blackout apply to them . ) the two manage to penetrate a high security laboratory and i do admit that they have a novel way of get their explosive in . everything then seem to go off with clockwork precision . the only redeeming feature be some pleasant countryside and some good prop a couple of old vehicle and an impressive drainage system .