Mario Siletti

An ex-con trying to go straight is framed for a million dollar armored car robbery and must go to Mexico in order to unmask the real culprits.

Down-on-his-luck Mike Cormack is hired to fly to a Caribbean island to retrieve a missing ruby. On the island, possibly involved with the ruby's disappearance, is his ex-girlfriend.

During the Mexican revolution of 1910, an American prospector gets involved with the revolutionaries after a corrupt Mexican official confiscates his mine.