Matthew Keating, a one-time Navy SEAL and former US president, has always defended his family as fiercely as he has his country.

Now these defences are under attack. And it's personal.

Keating's teenage daughter, Melanie, has been abducted, turning every parent's deepest fear into a matter of national security.

As the world watches, Keating embarks on a one-man special-ops mission that tests his strengths: as a leader, a warrior and a father.

Because Keating knows that to save Melanie's life, he may lose his own . . .