After a computer virus shuts down the hospital's power, Jac and Connie fight to save the lives of close friends. As the hospital is evacuated, Ric mounts a desperate rescue for a trapped Essie. Meanwhile, Ange and Serena clash over Holly's care and continued life support.
This series is a spin-off from the long running BBC medical drama Casualty. Set in the same hospital as its sister series, this show follows the everyday lives, professional and personal, of the doctors, nurses and patients who find themselves, for various reasons, in the wards of Holby City General Hospital