After a hostile takeover attempt of his video game design company Imaginarium that resulted in the murder of his wife, Cailan Bane retires to the northern Maine woods to rethink his life. But his plans go in the dumpster when he intervenes to save a young boy being chase by mysterious assault rifle-wielding commandos.
He's forced to revive his persona as the Death Whisperer, a former Force Recon Marine sniper who rained the wrath of God on the Taliban, in order to get the boy to safety. But when the boy reveals that his entire town has disappeared and is now occupied by strangers bent on killing him as the only survivor, Cailan and his old sniper teammate, Dan Gabriel, investigate. What they discover is a terrorist plot that will make the 9-1-1 disaster look like a fender bender.
Cailan's intervention brings him to the attention of the terrorist mastermind, who contracts a deadly assassin to hunt down and kill him. Cailan is forced to fight a two-front war, trying to preserve the lives of thousands as well as his own, knowing that in this war, you only lose once. After that, no one keeps score.