When news of a train crash comes to Holby, Penny leaves to join the team onsite, leaving Ollie with an ultimatum: he must tell Hanssen he failed his exams, or Penny will. Ollie struggles to cope on AAU and gets himself into a sticky situation with a vulnerable patient. But how will that affect his decision to confess all?
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