The Watcher

On a fishing trip with his estranged son, Hastings comes under attack
Lieutenant Frank Hastings checks his gun at airport security so he can meet his son the moment the boy gets off the plane in San Francisco. After a year apart, he finds Darrell to be as moody and withdrawn as any other teenager, and prays that a fishing trip will bring them closer together. He is unaware that he and Darrell are about to experience the sort of bonding that only terror can provide.
Before setting off on their vacation, they arrive at Hastings’s apartment to find that a prowler has been lurking, but managed to escape before the police got there. When they reach the lakeside cabin, the watcher is already waiting, ready to take revenge on Hastings by targeting his child. To survive the ordeal, Hastings will have to trust Darrell in ways he never expected, and Darrell will have to become a man.