Longmire investigates after he receives a safe deposit box from a just-murdered inmate that contains a severed finger that is linked to both a new murder and a 20-year-old armed robbery. At the same time, Vic's paranoia peaks when she suspects she is being stalked, forcing her to confide in Walt.

An investigation into the murder of a Russian adoptee leads the team into a shady underworld. Henry faces trouble behind bars while Cady attempts to secure him competent legal representation.

Walt splits his time working on a murder investigation and serving as a judge for a local pageant. Cady hopes an old friend can help with Henry's case.

Walt is seriously concerned by Branch's behavior, but makes a key discovery in the David Ridges case. Henry faces a major setback in his trial. Vic makes an important decision about her future.