In this all-too-timely thriller, an apocalyptic bio-weapon capable of destroying life on Earth--the lethal Satan Bug--has been stolen from a fortress-like research center. Special agent Pierre Cavell is sent to investigate this baffling locked-door mystery, and he has just 24 hours to solve the case before a madman calling himself an environmentalist makes good on an ultimatum: destroy the research center or he will unleash the deadly plague upon the world.