Sergeant Voight tries to find out who is behind the murder of Jin, and come up with the unbelievable discovery and learned that Sergeant Edwin Stillwell playing a double game with the intention of getting out on the surface of the big fish along with Voight. In the meantime, all members of the intelligence departments receive death threats from an unknown group called "Shadow". At several places in Chicago in a fire, explosion, and robbery, for which "Shadow" take responsibility, bringing the city into chaos.
詹姆斯·诺顿,尼古拉·科斯特-瓦尔道,艾米丽·比查姆,克蕾曼丝·波西,埃迪·马森,奥利弗·马苏奇,索尔斯坦·巴赫曼,卢瑟·福特,卡伦姆·西维耶,奥斯吉尔·古纳尔松,杰森·福布斯,Elander Moore,Sveinn Geirsson,Björgvin Franz Gíslason,伊内斯·霍伊塞特·艾瑟森,Tommi Thor Gudmundsson,Daniel Hans Erlendsso