On March 15, 2026, AMC aired “Atída’ahiilyaágíí (Those Who Harm One Another),” the fifth episode of Dark Winds Season 4. This episode added to the gripping story of the neo-Western crime drama set on the Navajo Nation in the 1970s. Lt. Joe Leaphorn (Zahn McClarnon) and Sgt. Bernadette Manuelito (Jessica Matten) work with the FBI on a high-stakes investigation. They trade information for leads on their main case, the disappearance of a girl, as tensions rise. Officer Jim Chee (Kiowa Gordon) is working undercover to get information on Billie Tsosie’s (Isabel Deroy-Olson) cousin. This pushes the three of them to their limits as their own demons come out.
The episode gets more and more stressful for Chee, who is dealing with nosebleeds, hallucinations, and a cursed wound from a past trauma. He isolates himself from Leaphorn and Manuelito while he goes undercover to catch suspect Sonny. Leaphorn’s marriage to Emma (Deanna Allison) is on the rocks, and Manuelito keeps a secret about Leaphorn’s upcoming retirement that makes things even worse for the team. Billie learns something very important, and the hard-to-find “German killer” Irene Vaggan (Franka Potente) outsmarts the FBI, putting the search for the missing girl on hold in Los Angeles.
Critics call this episode a “top-notch hour” because it shifts the focus from procedural beats to emotional fractures, building to a desert-blurred vision of danger where Chee’s unraveling threatens the whole operation. The FBI alliance reveals weaknesses, hints at betrayals, and has supernatural elements that are true to the George R.R. Martin series. Fans think that Vaggan’s chess-like moves mean that the last three episodes will be very exciting.
