Frontier – Season 3, Episode 5: “House of the Lord”

Lord Fisher arrives at Castle Benton. Sokanon and Mary must fight together.

Frontier – Season 3, Episode 4: “All for All and None for One”

Harp arrives in Scotland, where he must prove himself to find help in his war against Benton.

Frontier – Season 3, Episode 1: “The Low Road”

Grace is a hostage to Benton, and Harp's revenge gets stronger, threatening to consume him and anybody near.