Though Sean O'Hanlon was a United States Navy SEAL and considered himself American above all else, he was irrevocably tied to the land of his birth. Bound to an ancient land, it's history and it's people by a seemingly cruel fate, Sean struggles to make sense of the legacy left to him by successive generations of O'Hanlons. He sacrificed everything to become a SEAL like his father before him. However, once the Trident was won he begins to doubt then curse the choices he has made in his life. He longs for the life he could have had with his precious Maggie. Their love transcended their own mortality, yet whether by God's design or his own ill choices they could never be together. And so Sean is commanded to his fate, embarking on a journey that takes him from the "troubles" in Northern Ireland to the jungles of South East Asia. From sunny California beaches to the wind swept mountains of northern Iran and from the polished corridors of the Pentagon to the cool morning skies above the Iraqi desert.

Like pieces of a puzzle, every turn in his life is an integral part of a prophetic equation. Trained as a Navy SEAL he is an expert in the special warefare arena. And in the flooded tunels of Cambodia, he learns first hand about the horrors of biological weapons. Ultimately, the final piece of the puzzle leads Sean back to where it all began- his native Derry. A terrorist holds the United Kingdom hostage with the threat of releasing a deadly virus. And only Sean O'Hanlon knows where to find him and how to stop him. Through it all, he strives to make his own destiny, only to succumb time and time again to an unyielding fate; the fate of Irish sons.