*Inspector Detector warns Speed to keep an eye out for a stolen gold shipment that he believes is being smuggled out of the country by one of the cars in the race. When the team of Cruncher Block's Mammoth Car believes Speed is on to them, they try to take him out of the race, but the Mach 5 cuts to the chase in this story of gold smuggling gangsters and monumental vehicles. *Source: Back of Card