discover at your local xfinity store today. >>> quinton hill has undergone months of intensive physicalyzed by acute flaccid myelitis or afm, that striefkes and paralyzes children every other year. for quinton's parents, erica and james, the past year has been a heartbreaking and endless storm to navigate. >> all right, here we go. >> reporter: but they've come across an innovative nerve transplant surgery that has given them hope. it could restore movement in quinton's elbow and shoulder. dr. mitchell seruya and his team in los angeles have successfully operated on at least 40 afm patients, but the surge are you can take ten hours. >> you can't just cut a section of nerve out and splice it in. it's like turning offer t the p to the house with a circuit breaker. it's like electrical engineering for the human. >> the hardest part for me is the unknown. i want him to be as functional as possible, right? and just the day that he can raise both arms and give me a two-armed hug, that will be a happy day. >> reporter: it's quinton's surgery day. >> how are you filing, q? >> good. >> are you r