A Chinese immigrant, recently arrived in America, fights to free Mexican slaves from their cruel master.

Two soldiers of fortune are hired by an inventor to protect him and his invention, a radar-like machine that is capable of controlling armies and forcing them to fight.

Charming, blithely amoral devil-may-care rogue Jesse Smith and peaceful, devout straight-arrow Mormon Lester O’Hara are estranged half brothers who are reunited after receiving a sizable inheritance from their deceased mother….