The Masons run into trouble on the road when a family of outlaws intercepts their search-and-rescue mission. Meanwhile, looming doubts over the construction of a massive alien weapon ignite a conflict of interests. And an investigation to apprehend a killer on the loose hits a road block. Gloria Reuben guest stars. “The Pickett Line” – Sunday, July 14, at 10 p.m. (ET/PT)
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