Having barely survived the latest attack on him, Alex feels adrift at the loss of his twin brother, despite everyone's attempts to console him. Officials from the Pentagon, the Vatican, and even a representative of the Native American Onondaga tribe descend on the Air Force base to mobilize against an imminent assault on humanity.

Despite losing Andy, Alex has a few fleeting moments of happiness, especially as he finds himself falling for Allison, Mr. Shaw's spunky daughter. But he knows these moments of "normalcy" will be short-lived because Ms. G and her group need his power to fulfill their evil plans.

When on-base treachery leads to attempted assassination and kidnapping, Alex-along with Roy and Allison-is plunged into a deadly standoff with Ms. G that he knows will result in his death and that of his loved ones. Can he allow them to be tortured, or will he give in to her monstrous demands?

Colonel Walker gathers his troops around the location where Alex is held prisoner - the mountain housing a mysterious "gate" into another dimension. Should Alex be forced to open that gate and release the dark entities within, the human race will come to a swift and violent end.

As the final battle approaches, can Alex hold out long enough for rescue to arrive?

The Healer Chronicles conclude.