Patrick Stewart starred as Mace Sowell, an ex-DIA (Defense Intelligence Agency) agent who believes his life is in danger from his former boss who is now running for President of the United States.
Sowell has information about the underhand dealings of his erstwhile boss at the DIA which would ruin his Presidential campaign if it ever was released into the public domain.
To complicate the issue, Sowell is in the early stages of Alzheimer's disease and has difficulty in convincing people his information is not paranoia as a result of his condition. Sowell retreats to the safety of his barricaded home, kitted out with a variety of defenses and security devices to try and escape those he thinks are out to harm him.