The tragedy unfolded in the last days of the Vietnam War. Donnie Fenn, a Marine of the US Army, is killed by a sniper's bullet, while his partner, Bob Swagger, receives a serious injury. Years pass, Bob marries Julia, the widow of his fallen friend, and they raise a daughter, Nikki, living on a ranch in the mountains of Idaho, in a remote province. Swagger's biggest dream—to rid himself of the painful legacy, forget the past, and live quietly with his family—seems to be coming true. But on one unremarkable day, Bob, along with his wife and daughter, rides out on horseback from the ranch. And on a rock above the mountain pass, a keen-eyed cold-blooded shooter, one of the best snipers in the world, looks through his telescopic sight at the three approaching figures. From the bitter, almost forgotten past has returned Swagger's deadly enemy, who had once failed to finish him off...
