Chicago Fire 4x17 - What Happened to Courtney

While responding to a potential carbon monoxide leak inside ahome, Lt. Severide and Cruz uncover the remains of a childinside the chimney. Subsequent information leads Severide tobelieve that the discovery may be linked to a case he hadworked on years ago. Meanwhile, with election day nearing,Casey braces for the worst in his run for Alderman, promptingDawson to enlist the firehouse team to lend a hand to thecause. Complicating his chances, Alderman Becks continues tobad mouth Casey to the press, but an incident in the fieldmight prove beneficial.