Travis Devin, the 6:20 man in To Die For, was featured in the prior books as an army ranger and on the financial battlefield as a high-powered corporate man. In this book, he is assigned to aid the FBI in escorting 12-year-old Betsy Odoman, an orphaned girl, to meet her uncle, who is under investigation for RICCO charges. As Devin gets to know Betsy, questions come up about the death of her parents.
The term "three-dimensional chess" is appropriate to this plot because the twists and turns come from all directions.
I enjoyed the first two books, but this was the best in many ways.