After three other cargo planes have mysteriously disappeared, an army air corps crew is informed that their plane is carrying a hidden time bomb. Since a powerful storm has made visibility virtually nil, the airmen desperately search their craft for the explosives.
Despondent shop girl Norma Bailey decides to end it all by gas asphyxiation. Before it can take effect, a young man breaks in and stops it, but he's there by chance, running from the police, pursuing him for a stolen diamond bracelet. Later, Norma falls in love with him and tries to persuade the victim not to press charges.
In the 1870's,Texas Ranger Earl Webb must escort wanted gunman John Fenner by passenger train through the state of Louisiana to get back home. However, the long, grueling journey is fraught with danger, including many of Fenner's trigger happy relatives trying to free the prisoner.