Cal Bennett has a problem. Three, actually.
Enforcers with kill orders. A university under siege. And a man who should be dead—but isn't. Cal and his friends barely escape an enforcers' ambush before picking up a lead on Karn, a murderer infected by the same alien cells that power Cal's AI implant. The plan: trap Karn and end it for good. But Karn gets there first. Trapped inside a tower along with hostages, Cal and his crew are caught in a deadly game of cat-and-mouse against the building's deadly security sentinels. Plans fall apart. Karn grows more unstable—and more dangerous—by the minute. To stop him, Cal will have to risk everything… including letting a madman get close enough to take control. Because if Cal fails, he won't just lose the fight. He'll lose himself. Join Cal and stop a madman intent on destroying humanity.
