Cassandra returns to Seacouver and reveals that the lovable Methos was a killing machine during the Bronze Age, who enslaved her and murdered her entire village. Mac must grapple with this new information while battling Methos’s former partner in villainy, Melvin... errr... Kronos. The Rewatchers spin the wheel of history, guess which horseman of the apocalypse is which, and try to figure out if Methos is actually smart.