. >>> will's an old saying you can't put a price on life but don't tell that to chris liles. he has two weeks to raise almost a half a million dollars. jeff hager has more on his challenge. >> reporter: after months of battling bronchitis and upper respiratory problems, chris went to a specialist, fearful he had asthma. he -- he had cancer. >> i was only blowing out 20%. he saw a lump. >> reporter: within a week doctors told him he had a rather form of trachea cancer. he learned the prognosis. >> i would be dead in six months. i have a positive attitude. everyone i've talked to, they say you have to stay positive. >> reporter: he has undergone 33 treatments but he needed a transplant. tragically help wasn't a candidate since the same anti rejection drugs would fuel his cell. the procedure has only been performed less than a dozen times. >> my insurance doesn't cover it. if you fall -- if you go to europe and fall and brake your leg, they'll cover that. if you find out you're sick and you need surgery and have this go out of the country to get surgery, they won't cover it. >> r