A Chinese general goes berserk and has a system of tunnels dug all the way from China to USA, under the Pacific Ocean! Wherever there is an important military base, he places atomic bombs. US Navy soldiers go underground to repel the invaders. |
Kerwin Mathews | - | Cmdr. Jonathan Shaw |
Viviane Ventura | - | Tila Yung |
Robert Ayres | - | Adm. Felix Hillebrand |
Peter Arne | - | Arnold Kramer |
Al Mulock | - | Sgt. Marvin Mulberry |
Martin Benson | - | Gen. Chan Lu |
Peter Elliott | - | Dr. Kengh Lee |
Earl Cameron | - | Sgt. Seth Hawkins |