Influential tech magnate Mitch Drewson calls on Sinclair and the Dagger team to protect his Project Optimus. An ambitious endeavor that empowers citizens to protect their financial and personal data in the face of increasingly authoritarian federal governments, Project Optimus is a threat to Aurelius Blanc's Phalanx Corporation. Blanc's data collection and media application are enabling a global security threat, creating a technofascism that monitors the activity of everyone with a smartphone, tablet, computer, or any web-connected device.

When Phalanx assassin squads overrun an Optimus server farm in California and attack an Optimus coder named Blair Campbell, who happens to be the president's daughter, Sinclair must deploy a group of warriors to save Blair and protect the remainder of the Optimus team so they can finish their important work-a project that includes deciphering the mysterious Phalanx Code, suspected to be Phalanx's kill list of Optimus employees.

With Phalanx squads hunting him and those he loves, Sinclair must determine who he can trust while a part of his past comes back to haunt him and threaten everything he holds dear. Nonstop action and authentic detail make this the most compelling, high-stakes entry in the Sinclair series yet.