Last year QED told the story of 12-year-old Emmett, and how an American surgeon used computers to analyse his walking disability caused by cerebral palsy. Then in a massive operation they broke his leg bones to straighten them, repositioned his muscles and tendons and when it was all over he was inches taller. But he still had a long way to go. Now a teenager, Emmett faces all the usual challenges of growing up and gaining independence. For a year QED cameras have followed his progress and this new film tells how he is discovering what it really means to stand on your own two feet - in every sense.