Dawson keeps an eye out for Bria, because of her harsh living conditions, but when she suddenly vanishes, Dawson and Severide set out to look for her.br br Season 6 Episode 9 "Foul is Fair"br Casey and Dawson's relationship becomes strained when she spends most of her time trying to find the missing teen along with Severide. Meanwhile, Otis, Mouch, and Herrmann investigate an overwhelming scent permeating through 51. Kidd and Brett fight for the affection of a good looking Lieutenant from the HAZMAT Unit.