You are Cal Phoenix, the Freeway Warrior, champion and protector of Dallas Colony One. From the sanctuary of Big Spring your convoy of survivors begins the next stage of its life-or-death exodus: a journey to the fortified border town of El Paso, a destination that lies hundreds of miles beyond the sun-scorched wasteland of West Texas. In Slaughter Mountain Run your mission is to rescue Kate Norton from the clutches of your arch enemy - the H.A.V.O.C leader Mad Dog Michigan. You have just seven days to free her and to rendezvous with the colony before it runs the gauntlet of fire that protects the only mountain road to El Paso.