During a night with a bad weather, the Chastain Park Memorial Hospital will lose its power and it will have to treat its patients with the backup generators. Unfortunately, 40 minutes later the generators will also stop working. Dr.
Okafor and Dr. AJ Austin are in surgery during these 40 minutes in order to reroute blood flow to a newborn’s sick heart so she can get oxygen. Dr. Bell starts to send patients to other hospitals, but when a paramedic brings an
eight-year-old boy with a gunshot wound to the abdomen to the hospital, and nurse tries to send him away, Conrad despite Bell’s orders he accepts him. Because the boy couldn’t reach another hospital alive, he asks for Dr.
Nolan while he opens him up and prepares an OR in ER. Chastain’s I.T. guy informs Bell that the power-loss is not caused by the weather but from a cyber attack where there is a demand for ransom, something Bell refuses to
pay.