Chaos reigns in the ER when two prisoners are brought in for treatment, but instead plot a violent escape. Their desperate actions place one doctor in harm's way, and forces one nurse to become a tool in their plan.
Chaos strikes in County General when shots are fired and the gunmen get more and more desperate to make it out of the hospital. Kovac unknowingly puts himself in harms way while Abby is in the line of fire. Meanwhile, Pratt tries to help Neela as she attends to Gallant's concerned parents.—Alex