High Explosive is a Hollywood "B" precursor to the later, more critically lionized The Wages of Fear. Chester Morris plays a two-fisted trucker who takes on a deadly assignment: Transporting nitroglycerin over bumpy terrain. As half the supporting cast is blown to smithereens, Morris persists in his white-knuckle mission. His diligence is motivated by guilt; Morris had been responsible for the training death of his girl friend's (Jean Parker) brother. High Explosive was a lucrative entry produced by Paramount's "Two Dollar Bills," William Pine and William Thomas. ~ Hal Erickson, Rovi