This book is not the best entry in the Jake Grafton series (I still hold out for the first, Flight of the Intruder) but it is a very good book, if you can put up with a couple of annoyances. The plot is rather simple. Grafton goes to Hong Kong at the behest of the government. His mission is to investigate whether the American consul there is getting involved in something he shouldn't be. The reason for sending Grafton is that a lifetime ago he flew missions in Viet Nam with the guy, and they're friends. So Jake goes to Hong Kong, and takes his wife along, because he met her in that city thirty years ago.
When they arrive, things get hot pretty fast. In addition to Jake's old friend (now a dot-com billionaire) there are various spies of dubious loyalties, an even more doubtful smuggler, and the usual Communist monsters running things. Coonts' politics are rather apparent (the fictional Democrat President has been bought off by the Communist leadership, and the Communists themselves are scum) and may be offensive to some people, or at least a bit annoying. His action sequences are fun, though I will say that the bit with the combat robots was a bit much.
Overall I enjoyed the book, though, and would recommend it.