When an MI6 agent is found to be keeping records of his missions to protect himself from betrayal he unwittingly makes himself a priority target. But how do you silence the most dangerous man imaginable? Send him into hell on earth. While Alex King is sent into Northern Iraq to tidy the loose ends of a botched mission, the archipelago of Indonesia is under communist threat from within its own military. A consortium of worried businessmen call for desperate measures and seek the services of an assassin.

At a US research facility funded by the military and clandestine agencies, a super-virus has been created as a first-strike military weapon. During its conception, the anti-virus has furthered the possibilities of medical research by decades. Such is its potential, treachery has struck from within. If the virus is released, then the anti-virus will be worth billions to the pharmaceutical industry. Isobel Bartlett worked on the project and knows its potential.

Court Gentry is known as The Gray Man—a legend in the covert realm, moving silently from job to job, accomplishing the impossible, and then fading away. And he always hits his target. But there are forces more lethal than Gentry in the world. And in their eyes, Gentry has just outlived his usefulness. Now, he is going to prove that for him, there's no gray area between killing for a living-and killing to stay alive.

Dante Jacoby is a slave to the trappings of the modern world. Twenty-six years old and hopelessly addicted to booze, cigarettes, and procrastination, he’s squandered every ounce of his potential. His corporate raider father, Dorian, reaches the end of his tether and cuts Dante off as heir to the Jacoby family fortune. His mother, Fiona, is smarter than her husband: she hasn’t spoken to Dante in months. But Dante’s no victim. He knows he brought this on himself.

British M16 Agent and former SAS trooper Jack Tate is trying to escape his past when he witnesses a terrorist attack of unthinkable scale. An electro-magnetic pulse knocks out the US power grid, killing anything with a computer processor, throwing the whole country into chaos. Under the cover of the blackout, a clandestine operation aims to assassinate prominent public figures on US soil. Looting and violence spreads across the country. And Jack Tate’s past comes back to haunt him.