As Guy's behaviour becomes increasingly erratic, Zosia's concerns put her in an impossible position, and Donna is shocked when her patient has a surprising visitor.
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