Why should wealthy Lord Gillingham wish to purchase a copy of his fabulous family diamond necklace? Intrigued, the Saint attends a fashion show - and ends up preventing a robbery.
Simon gets framed for murder after a visit to an artist's studio.
Steed stows aboard a multi-millionaire's yacht to learn about deep-sea diving!
Steed masterminds a robbery, Cathy is framed for murder.
