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# The Big Four
- URL: https://www.cascadepbs.org/show/agatha-christies-poirot/episode/the-big-four-qux56p/
- Published: 2025-09-17T22:21:54.000Z
- Updated: 2025-09-17T22:32:44.000Z
- Description: Poirot seeks help from friends old and new when he faces a dangerous group of dissidents.
- Author: Cascade PBS Staff
- Tags: Agatha Christie's Poirot, Season 13, Episode 2, #ZZZ_Episode_1511f3d6-6314-4b78-9999-a53f8c8c692f, #episode, #ZZZ_Show_b625189f-cac1-40be-b296-52d193ea9b0a, #v1.16

As the threat of world war looms large, Poirot seeks the help of friends both old and new when he is pitted against a dangerous group of dissidents responsible for a series of violent murders.