When Alex Gregory takes his first job for Sterling Chemicals, a company poised to make millions from their newest pesticide, he has no idea he's stepping into the shoes of a murdered man. Alex soon discovers the pesticide about to be released not only creates poisonous mosquitoes, but the treated plants begin competing for earth's oxygen at a slow but detrimental rate. Alex investigates the untimely deaths of those that learned the truth before him, and expose the company before they threaten the lives of future generations. But he must tread carefully, or he, Cindy, and Leslie, will meet their own untimely deaths.