介绍：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.

介绍：总督察Roz Huntley刚刚侦破一起连环谋杀案，成功抓获一名连环凶手然而法医官Tim Ifield却找到反腐小组AC-12，提出Roz在侦破过程中刻意忽略了对嫌疑人有利的证据，这起案件可能是一起冤案。于是AC-12的成员们展开了调查……

介绍：暂无剧情简