Two federal agents battle a gang that hijacks trucks carrying materials vital for the security of the country and sells them to foreign powers.

A Los Angeles police captain ties the case of a slain policeman to a bank robbery, all in a day.

Soon after thumbing a ride from a truck driver, Johnny McBride is badly burned and suffers from complete amnesia when the vehicle he’s riding in blows a tire and goes over an embankment in a fiery blaze. McBride later receives a tip from an acquaintance that a photo of him was placed prominently in the window of a photography studio in a town called Lyncastle, so Johnny immediately leaves for the burg in the hopes that something there will jog his memory.