1
Lieutenant Dubosc stands on the platform, bidding farewell to M. Hercule Poirot as he prepares to board the Taurus Express. Lieutenant Dubosc converses with Poirot, expressing hopes for the journey amidst cold weather reports. He reflects on the ongoing military tension which Poirot's presence seems to have alleviated.

2
Poirot begins interviewing passengers and learns of the various connections they have with the deceased. Every testimony uncovers a layer of complexity amongst an array of suspicious characters, each holding a potential motive for Ratchett's death.

3
Mrs. Hubbard reveals the plan devised by the group to avenge Ratchett's victims. Mrs. Hubbard passionately recounts the pact made by the group to ensure justice for the Armstrong family.