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.
演员：索茜·贝肯 吴育刚 奥马尔·马卡迪 Shira Scott Astrof Rick Glassman Nanrisa Lee Matt Cordova 大卫·富特尼克 Sue Ann Pien Heather Adair Arthur Keng Melanie Herrera Jocelyn Marie Albert Rutecki