The technobabble is very hard to follow, but the book is a great accounting on how, after the USA happened to discover a sunken nuclear missile-armed Soviet submarine in the Pacific Ocean in the late 1960's, was uncertain what to do. Not only were there all the political, diplomatic, legal, financial, and moral aspects to consider in whether or not the USA would try to retrieve this submarine, but this would be an unprecedented engineering feat for the early 1970's, when the decision was made to try to retrieve it from the bottom of the ocean, in the days when computer technology and naval engineering was still comparatively primitive compared to the present. Also, by getting the submarine out, how would the Soviets react, let alone the rest of the world?
The attempt is made, of course, with a cover story created that it was an ocean mining operation sponsored by Howard Hughes (who does not personally appear in the story, but his representatives do). A specially made ship is created for the purpose, with the CIA doing everything within its power to hide its real purpose from the world, and the operation itself proves to be extremely hazardous. The book is difficult to follow, but it is not from bad editing or crafting. Definitely a major if little-known piece of Cold War history.