Hostage negotiator Sloane McClaine has things under control at a hostage scene when things go terribly wrong. Suffering from a concussion and embroiled in a wrongful death lawsuit, he is recovering at home when it comes time for the dark of the moon. His lover, Holden MacKay talks him into coming to Blackwater Falls to finish his recuperation during the three dangerous days, and Sloane reluctantly agrees. Meanwhile, shifters Travis and Camron get shocking news that freaks them both out and precipitates an argument that drives Travis away from home. He runs to Holden, his former best friend, who takes him in even though he knows it will cause trouble with a furious Camron. Travis is unable to shift and now Holden has two people to worry about keeping safe during the dark moon, but that isn’t the worst of it. Someone is lurking around the bar late at night while Holden and the rest of the cougars are on the prowl. Strange screams have been heard on the mountain and someone is throwing rocks at the house to lure Sloane and Camron outside. An injured Sloane is forced to rely on instinct and ingenuity if he’s going to be able to survive the dark moon and get himself and Camron out of this alive.