A tragic encounter with a bullet-riddled man in a dark alley catapults computer-nerd Sean Calhoun into a deadly cat and mouse race to protect a stolen cell phone from those who would kill to get it back. This is no ordinary cell phone, but a communication link to the afterlife. Does he believe it? No. Not until he gets a call from his deceased dad, which is cut short when the killer shows up to reclaim the phone, a confrontation that nearly gets him killed. If Sean is ever going to get that phone back and call his dad, he must team up with an NYPD detective he doesn't trust and go undercover in the mastermind's laboratory where an ancient stone obelisk, stolen from the Rwenzori Mountain natives of Uganda, is connected to the most powerful Cisco router ever created. Though this pairing makes ethereal calls possible, when these forces collide, New York City is headed for the apocalypse, and only one man can stop it: Sean Calhoun.