KC McClory, widow of Frankie McClory, a slain IRA soldier, is asked by her dead husband's malevolent brother to smuggle guns into America to give to the Plowman, an IRA assassin who aims to kill a world leader in exchange for moneys flowing to the IRA. But KC is actually an agent of TRIAD, a U.S. counterterrorism operation, a fact which creates dangerous complications when she stays at the Pasadena home of Judge Osborne and his family, who raised her.