The First Plague: Harbinger

In "The First Plague: Harbinger," the Matthews brothers and a group of survivors navigate deadly threats and uncover new truths as they race north to find answers and confront powerful enemies. With a dangerous new plague variant and relentless pursuers, their journey tests their limits while revealing the hidden history of the Order and the origins of the Four Horsemen. Amidst shifting allegiances and ancient conflicts, the characters face mounting dangers and unexpected revelations.