Sir Bernard Chumley (off the Telly) and sidekick Tony Rodgers, visit Bronson House, the country retreat of Princess Anne.

They are met by Penelope Lowe (Julie T Wallace), the housekeeper who's mother is ill and leaves them on strict instructions not to enter the Princess Royal's private chambers.

When left alone in the house, Chumley and Tony of course ransack the bedroom and try on the Princess's clothes.

However, they soon run into their rivals and mirror images from a similar show, Sir Herbert Lumley (David Foxxe) and his sidekick, (Rodger) Paul Putner.