Helena is turning into a real family town.

When disgruntled “reformed” realtor Tonya calls the police on a squatter living in one of her homes, Jenny arrives only to discover a shocking connection to her past tied to the case.

Across town, Cassie and Beau work to track the still-missing backpacker and Sunny works to protect a secret of her own hidden in the woods.

Meanwhile, Beau’s daughter Emily takes a campground investigation dangerously into her own hands, but has she stumbled upon a story far more nefarious than she could have imagined?

Air Date: Wednesday, Sept. 28 (10:00-11:00 p.m. EDT), on ABC.

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BIG SKY - “The Woods Are Lovely, Dark and Deep” – Helena is turning into a real family town. When disgruntled “reformed” realtor Tonya calls the police on a squatter living in one of her homes, Jenny arrives only to discover a shocking connection to her past tied to the case. Across town, Cassie and Beau work to track the still-missing backpacker and Sunny works to protect a secret of her own hidden in the woods. Meanwhile, Beau’s daughter Emily takes a campground investigation dangerously into her own hands, but has she stumbled upon a story far more nefarious than she could have imagined? Find out on “Big Sky: Deadly Trails” WEDNESDAY, SEPT. 28 (10:00-11:00 p.m. EDT), on ABC. (ABC/Michael Moriatis) CREE CICCHINO