SAS soldier Aidan Snow is in the process of training a new unit of Polish recruits when he and his barely trained men are sent out to thwart a bank robbery. In the midst of this, the unimaginable happens - the military convoy is ambushed, and Snow fights for his life in one of the burning wrecks. Above him stands a green-eyed soldier, watching Snow's seemingly final moments. But he does not shoot him. Ten years later, Snow is teaching in Ukraine, trying to keep a low profile. However, fate has other plans for him. The green-eyed soldier, Taurus Pashinski, also known as The Bull, has meanwhile been recruited by his old army contacts to smuggle weapons and drugs across the border into Ukraine. There, he receives information suggesting that two British investors are allegedly responsible for the deaths of his brothers. A manhunt begins.