A medieval English knight is magically transported to present day where he ends up falling for a high school science teacher.
Tom Kirkman, a low-level cabinet member is suddenly appointed President of the United States after a catastrophic attack during the State of the Union kills everyone above him in the Presidential line of succession.
Eric Beaumont's crisis negotiator team is brought in to save lives and resolve the most difficult kidnap and ransom cases when no one else can.
