She has the cure. He has the means. Together, they just might have a chance.

After a well-intentioned experiment goes horribly wrong, a new breed of wolf Shifter takes over the night.

Diana has the cure, thanks to research she carried on after her father's death. But in her increasingly dangerous world, there's no one she can trust. Allowing anyone close could be the death of her—and of any hope the cure will reach those who need it.

Harm has the means, but lacks the cure. For years, he's worked for an elite government force, using his superior half-Shifter abilities in the battle to keep the streets safe. Now the Shifters are mutating and there's real fear that mankind is on its way to extinction.

When Diana and Harm's lives collide, they have only one chance to save the human world.