Nicolai Dalchimski, a mad KGB agent steals a notebook full of names of "sleeping" undercover KGB agents sent to the U.S. in the 1950's. These agents got their assignments under hypnosis, so they can't remember their missions until they're told a line of a Robert Frost poem. Dalchimski flees to the U.S. and starts phoning these agents who perform sabotage acts against military targets.
Charles Bronson
Lee Remick
Donald Pleasence
Tyne Daly
Alan Badel
Patrick Magee
Sheree North
Roy Jenson
John Mitchum
Jacqueline Scott
Frank Marth
Helen Page Camp
Ed Bakey
Carmen Zapata
Kathleen O'Malley
Åke Lindman
Ansa Ikonen
Ville-Veikko Salminen
Burton Gilliam