Follow the swashbuckling exploits of Simon Templar, a modern-day Robin Hood of sorts.

Timmy Lea and his brother-in-law Sidney Noggett are working as entertainment officers at Funfrall, a typical British holiday camp. The staff are lazy and inefficient, preferring to laze by the pool rather than organise activities for the holiday campers. A new owner, Mr. Whitemonk, an ex-prison officer, takes over the camp and is determined to install discipline into the staff. He is on the verge of dismissing Timmy and Sidney; however, Sidney's suggestion of organising a beauty contest changes his mind.

Upstairs: the wealthy, aristocratic Bellamys. Downstairs: their loyal and lively servants. For nearly 30 years, they share a fashionable townhouse at 165 Eaton Place in London’s posh Belgravia neighborhood, surviving social change, political upheaval, scandals, and the horrors of the First World War.