Borderline (Abridged)

Drained and haunted by the killings on Isle Royale, diagnosed with post-traumatic stress disorder and on administrative leave by order of her superintendent - the one bright spot in Anna's life is Paul, her husband of less than a year. Hoping the warmth and the adventure of a raft trip in Big Bend National Park will lift her spirits, Paul takes Anna to southwest Texas, where the sun is hot and the Rio Grande is running high. The sheer beauty of the Chihuahuan Desert and the power of the river wo…