Reagan assembles help from the whole rez to honor her aunt’s final wishes with a memorial, but she must first overcome some long-held family tensions. Nathan tries to help plan…

The Duttons try to figure out who’s sabotaging their ranch, and Thomas Rainwater breaks ground on his casino, putting all the ranchers’ businesses in jeopardy.

Kayce settles into his new role at the ranch. A damaging article threatens to expose John. Rainwater pitches his new plan to the tribal council.

The team splits up because of a massive zombie horde, and encounters a Native American tribe fighting against itself.

Sheriff Corbin’s son returns from war, but his strange behavior leads Abbie and Ichabod to question his intentions.