Agatha Christie's Poirot (1989)

S3E4 The Plymouth Express

An Australian shipping magnate enlists Poirot's help to scrutinize the suitors of his daughter. When the young woman embarks on a journey aboard the Plymouth Express, Poirot becomes embroiled in a case involving a jewel heist that unfolds on the train. As he delves into the mystery, he must navigate the complexities of both love and theft amid the passengers.