03/04/2017 (10:00PM - 11:00PM) (Saturday) : THE PRIME ARSON SUSPECT IN A DEADLY WAREHOUSE FIRE GIVES STONE AND VALDEZ A RUN FOR THEIR MONEY AS HIS HIGH POWERED ATTORNEY TRIES EVERY TRICK IN THE BOOK TO GET HIM ACQUITTED. Firehouse 51 responded to a horrific warehouse fire that killed 39 people. This led the Chicago P.D. on a manhunt for the suspect. Now with someone in custody for both arson and multiple murders, it is up to Peter Stone (Philip Winchester) and his team, including lead investigator Antonio Dawson (Jon Seda) to step in to bring some peace and resolution to so many families and friends of those lost - including one very close to home. When the team comes face to face with a hotshot attorney (guest star Bradley Whitford), they find themselves up against a dicey confession, incriminating evidence, and a questionable motive. Starring Carl Weathers, Joelle Carter and Monica Barbaro. Guest starring Elias Koteas, Jason Beghe and Taylor Kinney.