Indianapolis, 1966. The Vaillante team is there to prepare for the legendary Indianapolis 500-Mile Race. The competition promises to be fierce, but the two drivers, Michel Vaillant and Steve Warson, are confident. Soon they meet Rhona, a charming young woman who’s being harassed by sleazy individuals. The two men don’t know it yet, but they, too, will become the targets of underhanded manoeuvres … in a race that is about to go down in history as one of the most dramatic ever!