Tide in the Affairs of Men

After his stint in the U.S. Navy, Stan Olsson has made a comfortable life as an American literature teacher in Minneapolis. But that all changes when he gets a mysterious phone call and ends up meeting a man who will change the course of his life.
The Coast Guard and the DEA cannot control drug trafficking in the Caribbean, and an organization of zealous vigilantes has something stealthier to put into play. That something is a "ghost ship," a vessel that has been surreptitiously acquired and armed with the specific intent to intercept vessels smuggling drugs in the Caribbean. Olsson has the chance to command it. Against his better judgment, he accepts.
Olsson is told that he's not working for the CIA or the military, but for a small, undercover group that will take direct and forceful action against the drug trade. But how will Olsson and his crew respond when violent events force them to confront their innermost selves?
As the clandestine operation travels through the labyrinths of the federal bureaucracy and the whirlpools of power in Washington, the interwoven network of complicity, both active and unwitting, raises a chilling question: Are men molded by duty, or do they mold duty to their own will?