Suspicious of the secret conversations between Voight and Upton, Halstead conducts his own investigation into the night Roy Walton disappeared. He eventually tracks GPS coordinates to the field where Roy's body was buried.
In a tense final scene, Voight meets Halstead at the burial site and admits that Upton was the one who killed Roy, claiming she did it to save Voight's life. Chicago.P.D.S09E04.FRENCH.AMZN.WERip.mp4
When Voight suggests that Halstead doesn't truly know the woman he is sleeping next to, Halstead reacts by punching Voight in the face. Themes and Impact Suspicious of the secret conversations between Voight and