The BBC have today released promotional pictures for the first episode in their new six part adaptation of Agatha Christie’s Partners in Crime series. Centered on the detective duo Tommy and Tuppence, who run their own detective agency, the stories were written by Christie throughout her career from 1922 until 1973, appearing in Christie’s last novel. The duo have previously appeared on screen in the critically acclaimed Agatha Christie’s Partners In Crime during the 1980s played by James Warwick and Francesca Annis respectively. In the new six part series, made for BBC One in co-production with the Christie estate the titular characters are played by David Walliams and Jessica Raine. The first episode, based on the first story to feature the duo, The Secret Adversary will be broadcast on Sunday the 26th of July from 9:00pm to 10:00pm. The series trailer, a synopsis for the episode and the first episode’s promotional pictures are available below:

1952. In The Secret Adversary married couple, Tommy and Tuppence, have a chance encounter on a Paris train with an agitated young woman, named Jane Finn, who suddenly disappears and never returns to her seat. Whilst Tommy is focussed on their fledgling honey business, Tuppence is much more concerned about this missing girl and her investigations bring them into contact with Tommy’s uncle, and Third Floor bigwig, Major Anthony Carter. Jane Finn was carrying a secret recording that will reveal the identity of a legendary Soviet assassin, known only as Mr Brown, who they believe will strike soon in Britain. Carter believes Brown’s cronies must have kidnapped Jane – they can only hope she managed to hide the recording before they got to her. Despite Carter’s repeated attempts to keep them out of it, over the course of three episodes Tommy and Tuppence must face mortal danger to infiltrate Brown’s gang, rescue Jane and unmask Mr Brown in time to prevent him making a hit that could jeopardise Britain’s precarious relationship with America…

With thanks to BBC Pictures and BBC Media.