When New York City lawyer Janiece Ryder hears about a genetics experiment that is creating a new breed of reptilian soldiers who are both super-efficient and expendable, she knows that she should stop it. The only question she has is how. But when the company creating these soldiers, BIOGENCORP, learns that Janiece has acquired information about the experiment, it sends the A.R.EX. group’s first soldier, called Arex, on a mission to silence Janiece for good. And to make matters worse, the FBI has begun to think that Janiece is involved with the escape and kidnapping of one of her convicted clients, Erickson Meyers. As the soldier studies Janiece, he begins to question why he was asked to assassinate a woman who doesn’t appear to have done anything wrong. Unsure of his past before joining the A.R.EX. project, Arex wonders if Janiece can help him uncover the truth. The one who seems to have all the answers is the very person they’re trying to stop. They both find themselves putting their lives at risk in order to ensnare the scientist behind the A.R.EX. project before it’s too late.

It has been five years since the A.R.EX. project’s first genetics experiment to create a new breed of super-efficient reptilian soldiers. Rivers, a newly created being, feels out of place in the human world, burdened by his creation, physical appearance, and the reality of his nonexistent identity and past life as Erikson Meyers. As he tries to enjoy his life living as Alex Rivers in New York City, he has no idea that someone out there hates him enough to ruin his life.As Arex attempts to exist peacefully, away from the prying eyes of the perpetually hungry paparazzi, a new humanoid reptile stalks the homeless, assaulting and robbing the innocent of what little they have. As the FBI begins an investigation to identify the perpetrator, Arex is the obvious suspect, since there are no other reptilian soldiers like him out there—or so they think. Soon, however, they must face the horrible possibility that someone has been able to replicate the secret A.R.EX. serum.In this gripping story, a compelling case unfolds as Arex Rivers is reluctantly thrown back into the spotlight and faces the reality that he may not be the only one of his kind.