Within the Tack Enterprises group of underground fighters, Tor Burns is one of the few noninfected vampires committed to saving his diseased comrades from certain death at the hands of the Vampire Council. He is the meanest, strongest, and most impulsive member of the team. Having survived a vicious attack in Tack's underground facility, he now has a new purpose: guard the irresistible daughter of their fallen leader, no matter the price. Armed with an abrasive personality and fierce loyalty, Tor approaches this new responsibility with serious determination, despite his reservations. Hunted by the Council, Allison Tack is unable to do as she pleases. The beautiful and timid co-heir of the Tack fortune is guarded by those loyal to her father. A walking target wherever she goes, Allison wants to learn how to protect herself, but no one is listening. Sick of being the helpless one in a company of trained fighters, Allison vows to prove that she can fight alongside the best of them. Meanwhile, harem leader Melissa is hell-bent on unraveling any clue about the fate of her son, Demetrius. He disappeared without a word, and time has made her desperate to find him. Stepping up her efforts, she seeks the help of Demetrius's son, Zane. With his help, Melissa finds the lair of the underground vampires and wages war against them. Thrown together by necessity, Tor and Allison can't continue to deny their attraction to each other. Tor wants to give in to his feelings for Allison, but old demons resurface. Tormented by a dark secret, Tor must confront the past to prevent losing the best thing that ever happened to him. A life must be given for a life taken. Will Tor have to sacrifice himself before Allison pays the price?