Alex Grady anticipated a peaceful camping trip when she hiked into the mountains with a group of friends, but what she finds instead is a nightmare. After witnessing a conversation she was never meant to hear, gunshots shatter the silence of her campground and Alex's life is thrown into chaos. As a nurse, her quick thinking saves her wounded friends—but not everyone makes it off the mountain alive.

With the names of the killers echoing in her mind, Alex sets off in relentless pursuit of justice alongside her surviving friends. But as the chilling motive of the would-be-assassins becomes clear, she realizes that she's uncovered a deadly plot that runs deeper than she ever imagined. Alex's meddling does not go unnoticed, and she finds herself squarely in the sights of merciless men who will stop at nothing until she's silenced.