After selling a ""race"" horse to get some working capital, Alec poses as an eccentric millionaire to try to relieve a shipping tycoon of a million dollars.

Marcel poses as a scientist who's invented a diamond making machine, which they try to sell to the world's biggest diamond merchant. As a side effect they buy the stock of his company when it drops in price, fully expecting it to return to full value once he destroys the machine.

In New York, Tony tries to take back a diamond necklace that once ""belonged"" to the family, but were lost by an ancestor 106 years ago. The necklace is in the hotel room of a visiting dictator, who is planning to sell his country's crown jewels for his personal profit.

Alec poses as an inveterate gambler and Marcel as a Swiss banker with a penchant for baccarat in a scheme to fleece a Latin American leader who absconded with his nation's treasury.

Tony is brought in, when Uncle Bertie loses a small fortune at Courtleigh House, one of London's premiere gaming houses. Tony is supposed to crack the safe, but is setup for theft and caught red-handed. Briscoe gives the family 24 hours to prove his innocence.