Surgeons at St Mary's in Paddington face a familiar dilemma. They have two patients requiring life-saving surgery who will both need a bed in ICU after surgery - but there is only one bed available.

Nearly all 297 beds at St Mary's in London are occupied, staff need to discharge patients to make way for new arrivals. A homeless Polish man and a 90-year-old woman are just two of those with nowhere to go.

Kevin O'Neill is one of the country's leading brain surgeons but also has some of the longest waiting lists. A pioneering new form of non-invasive brain surgery using MRI-focused ultrasound could reduce recovery time and waiting lists.

This edition looks at the treatment of non-UK residents who need urgent life-saving treatment within the NHS. It is then the responsibility of overseas officer Terry Facey to prepare them for the bill.

98-year-old John is about to become the oldest person heart surgeons have performed a TAVI heart valve insertion on. 18-year-old Debbie will have a new type of bone marrow transplant.

Surgeons are forced to use unconventional methods to save lives. Jennifer will becomes a live kidney donor to try and save her husband. Surgeons have to deal with the shortage of beds for recovering patients.