The game opens in the Southwestern United States in an alternate history of the year 1976, in which the 1973 oil crisis was never resolved. The corrupt police force is ineffective against rampant riots, and the area devolves into lawless chaos. In an attempt to maintain order, some civilians turn to vigilantism by outfitting their vehicles with armor and weapons. One such vigilante, Jade Champion, is found murdered in a junkyard.
Suspecting foul play and seeking vengeance, fellow vigilante Taurus convinces Jade’s brother Groove to join him in his investigation. Although reluctant, Groove proves himself a talented driver and a capable fighter, quickly picking up on the necessary skills to survive in battle.
In the course of their patrols, the two stumble upon a briefcase containing a large amount of money, and plans for a nuclear device. Taurus deduces that Jade had found out about this as well, attracting the ire of higher powers that got her killed. Further investigation clues them into spying on the deal to acquire the bomb, during which they learn of its intended delivery: an old military fort built on top of North America’s largest oil reserve.
Groove storms the fort, fighting against an unexpectedly overwhelming opposition that leaves him with no way out. In a desperate maneuver, he ramps over the fort’s outer wall and crashes into the compound, wrecking his car in the process and knocking himself unconscious. Upon awakening, he finds himself at the mercy of Antonio Malochio, Jade’s killer and the mastermind behind the plan. As he arms the nuclear bomb, Malochio openly gloats that he has been hired by OPEC to destroy America’s oil reserve in order to perpetuate the crisis and keep prices high.
Groove taunts Malochio into a duel, accusing him of dishonorably killing Jade. Furious, Malochio orders him to pick a car from the garage and fight him one-on-one. Despite fighting an unfair battle with Malochio’s henchmen joining in as reinforcements, Groove emerges victorious, leaving Malochio trapped in the remains of his own car. As Malochio begs for his life, Groove experiences a brief vision of Jade in the distance, giving him the resolve to execute Malochio at gunpoint, and sate his revenge.
