A Russian officer is sent to the U.S. to try and stop sleeper agents who will mindlessly attack government entities when they hear certain coded words.
Director: Don Siegel
Cast: Charles Bronson, Lee Remick, Donald Pleasence, Tyne Daly, Alan Badel, Patrick Magee, Sheree North, Frank Marth, Helen Page Camp, Roy Jenson, Jacqueline Scott, Ed Bakey, John Mitchum, Iggie Wolfington, Hank Brandt, John Carter, Burton Gilliam, Regis Cordic