Pittsburgh Memorial transforms into a combat-zone field hospital when an active shooter opens fire at PittFest music festival, forcing the ER to evacuate all existing patients and implement color-coded triage zones for hundreds of incoming gunshot victims. Dr. Robby leads the mass casualty response while desperately unable to reach his stepson Jake, who was at the festival when the shooting began. Critical supply shortages force battlefield medicine as staff donate unscreened blood, improvise chest tubes from breathing tubes, and make life-or-death decisions under impossible resource constraints.

This episode demonstrates how hospitals respond to mass casualty events and the brutal reality of resource allocation during crisis situations. You'll understand the psychological toll on medical staff who must compartmentalize personal terror whil ...