A treasure that was taken from the centre of a legendary city. A resurgence of nationalist violence last seen during the darkest days of World War II. Hungary's Budapest. The ultra-nationalist Eröszak party demands vengeance after a priest is killed at the Basilica of St. Stephen and the Holy Right relic is taken, and anti-Semitic violence breaks out in the city. Zoltan Fischer, a Jewish security consultant from Hungary, is trapped inside the synagogue with Dr. Morgan Sierra, a psychotherapist and ARKANE agent. As the violence increases, Morgan and Zoltan are in a race against time to uncover the Holy Right and stop the plot before more blood is shed on Budapest's streets.