Government officials discover a horrible plot: the Chinese are tunneling their way to the United States.
Government officials discover a horrible plot: the Chinese are tunneling their way to the United States.
Kerwin Mathews , Viviane Ventura , Robert Ayres
Jim Morahan
Metro-Goldwyn-Mayer British Studios , Reynolds-Vetters Productions Ltd.
as Cmdr. Jonathan Shaw
as Tila Yung