In The Shadow Patrol, John Wells is again asked to serve as a freelance troubleshooter for the CIA, his former employer. The basis of the plot revolves around Wells going undercover in Afghanistan to investigate if somehow the Taliban has infiltrated the Kabul station. Once there, Wells enters a web of mistrust and uncovers clues that suggest that a drug trafficking operation is in effect that involves the agency, the military and the Taliban. As a result of the operation, American soldiers are dying -- and only Wells stands in the way of those responsible.
Similar to the first five books in Berenson's John Wells series, The Shadow Patrol is entertaining and well-researched. However, relative to the other books, The Shadow Patrol is not quite as well-plotted, nor is it as much of a page-turner. Further on a comparative basis, The Shadow Patrol falls somewhat short in terms of dimensionalizing his main character and particularly his supportive characters; to the point that readers that have not read any of this author's previous books might feel that they don't know the characters as well as they would have liked in order to care more about them. Additionally, the plot tends to drag too much at various times during the middle of the book.
Despite these comparative flaws The Shadow Patrol is a worthwhile read and one that I think espionage/spy genre readers will enjoy. I'd suggest, however, that before reading The Shadow Patrol new readers to the series begin with The Faithful Spy and at least one of the other John Wells books to enhance their understanding and appreciation of the characters they will meet in this book.