A Tom Kessler Operation Books in Order

After a surveillance operation collapses, detective Tom Kessler faces a crime boss threatening his family. Without official protection, he warns a cocaine dealer about an impending raid, beginning an alliance that crosses the boundaries of his job.

When a powerful politician assaults Pete Johnson's wife and escapes consequences, Pete and detective Tom Kessler act outside the law. Their pursuit of justice draws the attention of Russian intelligence and pushes their partnership into unfamiliar danger.

A Russian officer seeks classified missile guidance data in Britain, and Tom Kessler's unofficial team must stop him. A brutal attack fractures their operation, forcing a desperate deception as Moscow escalates and official backup remains unavailable.

An Iranian intelligence officer arrives in London under diplomatic cover, only to have his family kidnapped. Tom Kessler's rescue creates a debt that transforms the officer into a valuable British source inside a dangerous intelligence service.

Tom Kessler and Martina enter Iran on a deep-cover operation that ends in an airstrike. With their identities exposed, they must escape across the country, moving from the eastern mountains toward the port of Bandar Abbas.