Richard Walters is condemned to death for a murder he claims not to have committed. He arrives on death row just before a brutal inmate leads the other convicts in a violent uprising.
Tex Robbins, a Texas Ranger, posing as "Wolf" Cassidy, a notorious Chicago gangster, works his way into the rustling gang and hideout of "Three-Star" Henley, but his plans go wrong and he has to fight his way to victory.
Stephan Gregorovitch, the unwilling king of a bankrupt Ruritanian country, along with his hucksterish chancellor and musically-inclined bodyguard, travel incognito to London for some fun.