A Little Devil Complex

Antonio and his sister Gabriela go to the office of Elliot Gish, the man they believe started the fire that killed Shay. Intelligence along with patrol officers Burgess and Roman put pressure on Gish to try and make him confess. Lindsay approaches Voight about returning to Intelligence when she realizes that the task force isn't what she thought it would be. At the same time Desk Sgt. Platt is acting strange and has everyone curious as to why she's being overly cheery, friendly and nice.