Unsatisfied with the investigation now that the girls' disappearance has made headlines, Cassie and Jenny take things into their own hands, tapping into their individual strengths to make headway in the case. Meanwhile, Legarski attempts to keep cool, but Ronald takes a different approach to protecting himself. Still captive, Danielle and Jerrie tend to Grace, who makes a painful decision in an attempt to save them all.
Private detectives Cassie Dewell and Cody Hoyt join forces with his estranged wife and ex-cop, Jenny Hoyt, to search for two sisters who have been kidnapped by a truck driver on a remote highway in Montana. But when they discover that these are not the only girls who have disappeared in the area, they must race against the clock to stop the hugger before another woman is taken.
Big Sky - Unfinished Business Synopsis and Schedule