In a dystopian future, a deadly epidemic known as the "Scottish Plague Virus" has ravaged Great Britain, turning the population into bloodthirsty zombies. After the virus breaks out in Edinburgh, the government is forced to quarantine the city, sealing its inhabitants within an impenetrable wall. Two decades later, the virus resurfaces in London, prompting the authorities to take drastic measures. To contain the crisis, they dispatch an elite team, led by the intrepid security agent, Rea Riley, into the quarantine zone, where survival is a daily struggle.
As Rea and her team venture into the heart of the devastated city, they discover that what remains of the population is not dead, but has evolved into a brutal and primitive society, governed by the law of the strongest. While Rea battles the dangers of both the infected and the survivors, she uncovers a dark secret related to the origins of the virus and its connection to the present. With time running out and the threat of infection looming, Rea must confront her worst fears to save not only her team but humanity itself.
Adrenaline and action are guaranteed in this thrilling adventure that raises questions about survival and morality in extreme situations.