جون سيدا

في الوحدة التجريبية "إميرالد سيتي" في سجن ولاية أوزوالد، نتعرف على بعض السجناء المختلفين الذين يعيشون في ترتيب هرمي يشمل عصابات الشوارع واللاتينيين والمسلمين وعصابة ويستي والآريين والمحتالين.

Severide and Stella keep an eye out for Grant; Louie has Dawson questioning her dangerous career path; Casey's relationship with Susan Weller cools down; tensions between Borrelli and Boden reach a boiling point.

Patterson questions Boden's ability to lead the firehouse as the trial approaches; Brett and Chili find an unconscious man in a garden; Otis tries to fill his social calendar.

While responding to a call, Dawson accidentally hits a pedestrian who steps out in front of the ambulance, and must deal with the repercussions.

Casey helps a high school student who has become an innocent victim of gang warfare. Also, Severide bonds with a detective's son.

Otis and Kidd's lives are put in jeopardy when there's gunfire inside a house. Dawson comforts Brett during an especially trying time. Casey begins to notice that romance might be going on within the firehouse.