Lieutenant Lacey Anderson of the Dallas Police Department heads up a elite new squad dedicated to solving crimes involving Immortals like herself. Lacey, a Vampire left for dead when her family was slaughtered by Werewolves, still has nightmares about the attack.
Detective Colton Scarber is her unwilling partner and second-in-command. He’s a Werewolf, a descendant of those who killed Lacey’s coven. She’s unaware of this, but she doesn’t trust him from the start. When the fragile beginning of the team is threatened by the truth, can they learn to trust one another as partners must, or will the Undead Unit be doomed to failure?
A mysterious suspect and strange physical evidence leads them to solve a case spanning decades, and leaves Lacey with no other choice but to rely on her enemy when her very life is at stake!