The second episode follows some of the country's most daring and skilled surgeons as they perform fiendishly complicated life-saving surgery. Going beyond the theatre doors at the Queen Elizabeth Hospital Birmingham, this episode features two procedures so formidable, they would not have been attempted even a few years ago. Surgical teams at the Queen Elizabeth are constantly pushing the limits of what is possible. But despite state-of-the-art diagnostic scanning, sometimes cancer surgeons don't know exactly what they are up against until they open the patient up on the operating table. Even with the most meticulous planning, sometimes they must resort to taking critical decisions live in the theatre.