Government officials discover a horrible plot: the Chinese are tunneling their way to the United States.
Released: Oct 01, 1967
Runtime: 91 minutes
Genre: Science Fiction, Thriller
Stars: Kerwin Mathews, Viviane Ventura, Robert Ayres, Peter Arne, Al Mulock, Martin Benson
Crew: Charles F. Vetter (Screenplay), Charles F. Vetter (Story), Montgomery Tully (Director), Tom Howard (Special Effects), Kenneth Talbot (Director of Photography), Pat Kelly (Assistant Director)