Big brother Craig is making an extraordinary sacrifice to save his younger adopted sister's life. Also, a keen soccer coach and active family man has a collapsed lung, and he will need an urgent procedure to try to reinflate it.

Tim has a rare cancer that is invading his scalp and, in part two of his courageous story, the Vietnam veteran undergoes a 12-hour operation. Also, 29-year-old Clinton has suffered from headaches for most of his life.