When ultra-wealthy Dickie Ranford brags that his new eco-car can win an epic three-day race inside the virtual track with just a single tank of fuel, Speed, Conor and Lucy take up the challenge and enter the contest with Speed's Mach 6 wonder car. But with his trillion-dollar company on the line, Ranford will do anything to win, including setting off a dangerous avalanche that threatens to sweep away Speed and his Mach 6.