During a de-briefing from his last assignment, a top agent working undercover, unknowingly is administered a drug called Oblivion which destroys brain cells causing permanent memory loss. With only a few days before the injection becomes irreversible, he now realizes that no one at the agency can be trusted, not even his boss. Although his ex-wife left him because of the agency, she's the only one he can ask for help in finding the antidote before it's too late!