As a deadly game of chess unfolds in the wake of World War II, Russian grandmaster Dr Ivan Savaranoff meets a shocking end, sending the public spiraling into panic, as suspicion is cast upon Peace Party stalwarts Abe Ryland and Madame Olivier. In one of his toughest challenges yet, Poirot must work out who the villains are from the good people, as a complex plot sees a host of international figures used like pawns by a gang of dangerous dissidents tagged "The Big Four".

Agatha Christie's Poirot Season 13 Episodes...

• s13e01 - Elephants Can Remember
• s13e02 - The Big Four
• s13e03 - Dead Man's Folly
• s13e04 - The Labours of Hercules
• s13e05 - Curtain

Agatha Christie's Poirot Show Summary

Agatha Christie's Belgian detective, Hercule Poirot lives in London with Captain Hastings. Together, they range about Europe encountering cuddle mysteries. The series has strong story lines, good production and acting, and an unmistakable flavor of the pre-war years.