The new adaption is based upon the 21 children’s books Blyton wrote about four fictional children-turned-adventurers and their faithful companion Timmy the dog.

The stories follow Julien, Dick and Anne as they go and stay with their aunt, uncle and cousin Georgina (who refuses to answer to anything but ‘George’) in the fictional British coastal village of Kirrin for their summer holidays. Together the five find themselves entangled in countless adventures.

The books have been reimagined for the series by creator and executive producer Nicolas Winding Refn, the director of such high-octane films as Drive and the Pusher trilogy. The three 90-minute episodes promise adventure, mystery, and a mountain of unearthed secrets for the five young explorers.

George will be played by Diaana Babnicova (Little Darlings), Julien by Elliott Rose (The Northman) and Dick by Kit Rakusen (Belfast). Flora Jacoby Richardson will take the role of Anne in her TV debut. Kip, a Bearded Collie Cross, will complete the five as Timmy the dog.

Ann Akinjirin (I May Destroy You) and James Lance (Ted Lasso) will play George’s mother and father, Quentin and Fanny. Jack Gleeson (Game of Thrones) and Diana Quick (Father Brown) round up the supporting cast as Mr and Mrs Wentworth.

Tim Kirkby (Fleabag), Director of episode one and Executive Producer, says: “Our brilliant young cast are mind-blowingly talented and, along with Kip (playing Timmy), they are already bringing these gorgeous characters to life in a fresh and modern way.

Together with the brilliant Jack, Ann, James and Diana we can’t wait to bring these glorious, action-filled, epic, family adventures to the screen.”