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.

Two maxillofacial surgeons team up to rebuilds a 19-year-old’s face after removing a tumour, and consultant Aarti Sharma fights to give a mother with incurable cancer more time with her four children.

Eye surgeon Magdalena Popiela fights to save a woman’s sight, and for orthopaedic surgeon Clare Carpenter, a wave of emergencies add pressure to an already full day of surgery.

Paediatric surgeon Selena Curkovic is determined to make a life-changing operation happen for an eight-year-old boy, and a spinal surgeon must decide which of two patients gets surgery first.

A breast cancer patient and her surgeon of nine years hope a third operation means she can live life fully again, and three surgeons remove a tumour that is a 'ticking time-bomb.'