Two gear head brothers raised by a generations old family of vampire slayers learn that the combustion properties of vampire blood are extremely potent when blended with nitrous oxide and the ultra violet radiation of an automotive spark plug. This prompts a falling out between the two when one of the brothers uses the mixture of nitrous oxide and vampire blood, dubbed NOS402, to modify his car and win illegal street races ultimately causing his untimely demise and turning him into a creature of the night.