“The Bag and the Box” – Jenny and Beau are on the hunt to find the killer of a decorated veteran. Meanwhile, Cassie closes in on the Barnes family, all while getting closer with Cormac; and Tonya and Donno devise a plan for their own best interest on “Big Sky: Deadly Trails,” WEDNESDAY, OCT. 26 (10:00-11:00 p.m. EDT), on ABC. (TV-14, V) Watch episodes on demand and on Hulu the day following their premieres.