How far would one man go to honor a debt to a dead friend? The Fourth Option explores that. Chris Walker feels responsible for the death of his friend John Staub so when John's wife reaches out to him for help he shows up. This book explores the topics of philosophy, police corruption, drug related deaths, the opioid epidemic, vengeance vs. justice, big Pharma, the training of a former Navy SEAL/CIA agent, and a retired MWD. As Chris peels back one answer to the issue, another shows up escalating the tension to the final conclusion. The book reads like a movie, I could picture every scene. There is plenty of action and suspense. Great character development. The author takes from his own experience as a Navy SEAL to ensure authenticity in the operational details with the weapons, surveillance, and tactical movements. I can't wait to read the next Chris Walker story.