Sibel Edmonds joins the FBI's Language Services Unit after September 11, 2001, hired for her fluency in Turkish and other languages needed to translate a backlog of high-security wiretaps and documents. On the job she flags what she believes is espionage inside her own unit, a colleague potentially working for Turkish intelligence, and reports it up the chain expecting an investigation. Instead the FBI turns the scrutiny on her, interrogates her, and fires her, then invokes the State Secrets Privilege to block her from testifying in court or to Congress about what she found. The film follows her transformation into the country's first publicly known national security whistleblower, a status the ACLU marks by calling her the most gagged woman in America. Interviews and documents trace her legal fights to get her allegations heard through any channel still open to her, and the case becomes a test of how far the government can go to silence an employee using national security law itself as the muzzle.