Season 12 Episode 1 | 1h 22m 30s | Video has closed captioning.
Adapted by Mark Gatiss (“Sherlock”), “The Big Four” plunges Poirot into a world of global espionage, set against the backdrop of the impending WWII. The public is in a panic after the shocking death of a Russian chess grandmaster, and Poirot must navigate international figures and intrigue to identify the culprit, with the help of old friends Captain Hastings, Inspector Japp and Miss Lemon.
Aired: 07/27/14
Expired: 08/26/14
From: 
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