Robert, a competent but inexperienced geologist, leads a politically explosive, top-secret mission JEN 129 in the Pacific in 1968-72 to recover a Russian submarine, equipped with nuclear technology, from a depth of 5000 meters. Should the Russians learn of this in these times of an arms race and the relentless war in Vietnam, World War III will inevitably break out. This must be prevented despite the persistent journalist Joyce and at the same time successfully complete the mission under the supervision of the unsavory project manager Graham. (MFG)