"The greatest danger to the mission is already on board."
An American submarine traveling through dangerous territorial waters is put in even more danger when two scientists bring venomous snakes on board.
Fred Olen RayDirector
Lt. Cmdr. James O'Neill
Dr. Andrea Swanson
Admiral Bradley Wallace
Jake Goldin
Eddie Boudreau
Major Drake
Ensign Richard Kelso
Captain Rogers
Officer Lozano
Sailor Rhodes
Sailor Wilson
Secretary of the Navy
Engineer
Engineering Officer
Japanese Trapper #1
Japanese Trapper #2
Johnson
Helmsman Long
Cook
Planesman Ray
