EightAmericansoldiers,commandedbyLt.Eason,arechosentoinfiltratethePloestioilfieldinordertosetsignalfirestoguideAlliedbomberstoGermany'smostcloselyguardedtargetofthewar.WhenlandinginRoumania,theyaresupposedtobemetbyapartisanastheirguide,buthehasbeenkilledbyanAlliedair-raid,andtheyaremetinsteadbyhisdaughterNitza,whoisveryhostiletotheAmericansassheblamesthemforthedeathofherfather.Astheymaketheirwaytotheoilfield,NitzaandManjackfallinlove.HeiskilledinaskirmishwithGermantroopsand,asadyingwish,asksNitzatocontinuewiththegroupandhelpthemwiththeirmission.Shedoes,thesignalfiresaresetandPloestiisdestroyed.