Simon goes treasure hunting with three unfriendly strangers, each of whom has a third of the treasure map.

Simon gets involved in political intrigue when he meets the revolution-minded brother-in-law of a deposed monarch.

Simon poses as a diamond cutter in an attempt to recover a stolen gem. 

The law is after Simon because of a blackmailer he was supposed to stop---but not kill. 

A millionaire gives a house party and invites his three ex-wives, courtly Simon Templar---and a madly overeager murderer. 

Private eye Peter Corrio so vaunts his gem-protecting talents that Simon suspects he is tempting fate---deliberately. 

The Saint tries to learn how a third-rate boxer has managed to win all his fights---in which his opponents have died. 

Simon stumbles onto a plot to abduct an English scientist and sell him to a foreign power. 

Simon agrees to invest in Oscar Newley's racing-car deal---if Oscar (Eddie Byrne) wins an upcoming race.