811 AD, a family, isolated in their home, deep in the woods a few days travel from Birka. They are poor. The hunting and fishing has been bad for some time, and the father, Joar, takes the desperate measure of going on a Viking raid. Joar does not return for a long time, and the family starts to fear he never will. Runa, the oldest daughter, takes over her fathers chores in his absence. She misses him dearly and nourishes a tender hope that he, once again, will return to them. But in her heart, somehow she knows, that the suffering of the family has just begun. There is something in the air, something in the water, the wind and in the soil. Runa is becoming aware of something vile, something dangerous out in the forest. One day when she is out hunting, she finds a bleeding man, a warrior, almost unconscious. She brings him inside and the family tend to his wounds. As he heals, she realizes he is sent to protect the family from an approaching evil. And he brings news of her father.
克里斯蒂安·沃尔夫（本·阿弗莱克 Ben Affleck 饰）具有破解复杂难题的天赋。当一位旧识惨遭谋杀，并留下一条“去找会计师”的神秘讯息后，沃尔夫不得不开始追查此案。当他发现得用更极端手段时，沃尔夫找了他久未连络、同时是名顶尖杀手的弟弟布莱斯顿（乔·博恩瑟 Jon Bernthal 饰）合作。兄弟俩与美国财政部副局长玛莉贝丝·麦迪纳（辛希亚·阿戴-罗宾森 Cynthia Addai-Robinson 饰）联手，一起揭露这桩致命阴谋，却让他们成为冷血杀手集团的目标，这群杀手无所不用其极也要掩盖秘密。
