It’s a seemingly ordinary day with the usual collection of patients. But soon, the day becomes anything but ordinary as two prisoners intent on escape come to the ER for treatment, along with a hidden conspirator. Luka discovers them and is injected with a paralytic and they force Sam to become a tool in their plan. Soon, gunshots ring out, a staff member’s life is in jeopardy. The medical staff rush to the aid of the injured and Abby collapses just outside a trauma room where Luka is tied to a gurney.