Expedition Bigfoot 5x4 Primal Fear Season 5 Season 5 8 Episodes Vidsrc 5x1 - Breeding Ground 5x2 - Nests of Giants 5x3 - The Watchers 5x4 - Primal Fear 5x5 - Watch Your Step 5x6 - Smells Like Bigfoot 5x7 - The Gathering Storm 5x8 - Bigfoot's Doorstep Russell searches a rugged hillside full of caves in Northern California's forests; Bryce speaks with a witness who hears frightening grunts; Mireya and Tobe Johnson expand their search area to determine if Bigfoot is mimicking animal sounds