When a well respected truck driver, the owner of a family trucking business, is found dead in his truck down a steep embankment along the Coquihalla highway that winds through the mountains in British Columbia, his distraught daughter wants to know how and why he died. Not long afterwards, while driving the same highway, her husband’s brakes are tampered with, almost creating another fatal accident on a treacherous incline, This compels Hunter Rayne, a fellow trucker and retired RCMP detective, to help her find answers.

As he uncovers signs of illegal cross border activity originating in a Seattle warehouse, Hunter recruits an old friend, an outlaw biker, to infiltrate what appears to be an international smuggling ring. But while Hunter follows up clues and waits for critical information from his old friend, the wily biker starts to play his own angles.

Finally, putting all the pieces together, there in the dark on the same uphill curve on the Coquihalla highway, Hunter risks it all to confront the murderer.