'Big Sky' Sneak Peek: Grace Is in Really Bad Shape After Getting Shot Twice (Exclusive)

An all-new episode airs Tuesday, Dec. 8 at 10 p.m. ET/PT on ABC. Unsatisfied with the investigation now that the girls’ disappearance has made headlines, Cassie (Kylie Bunbury) and Jenny (Katheryn Winnick) take things into their own hands, tapping into their individual strengths to make headway in the case. Meanwhile, Legarski (John Carroll Lynch) attempts to keep cool, but Ronald (Brian Geraghty) takes a different approach to protecting himself. Still captive, Danielle (Natalie Alyn Lind) and Jerrie (Jesse James Keitel) tend to Grace (Jade Pettyjohn), who makes a painful decision in an attempt to save them all.