Surgeon Naved Alizai operates on two children needing urgent liver surgery, and endocrine consultants Sheila Fraser and Emma Collins prepare to remove a tumour from a patient's neck.

Neurosurgeon Ryan Mathew must rebuild a man's missing skull, and consultant Sheila Fraser removes a football-sized tumour from a patient's abdomen, suspected to be cancerous.

Plastic surgeon Chris West stops an anxious cancer patient from leaving, and neurosurgeon Kenan Deniz operates on a rare tumour behind a patient's ear that could paralyse her face.