Children's heart surgeon Osama Jaber must perform lifesaving surgery on a 15-day-old baby, and neurosurgeon Kenan Deniz operates on a patient suffering from debilitating headaches.

At Wales's biggest hospital, neurosurgeon George Eralil operates on a 19-year-old with a rare brain tumour, and vascular consultant Lewis Meecham faces a wave of emergency cases.

Paediatric surgeon Oliver Jackson fights to ensure surgery for a 17-week-old baby triplet goes ahead. And a man who was the victim of an attack has an operation to restore his sight.