for the more than 30,000 u.s. troops injured in iraq and afghanistan, coming home to a sputtering economy prison even more challenges. but one texas builder, this week's cnn hero is helping them build their lives. dan spends his retirement giving injured soldiers a place to call home. >> baghdad ended up being a heck of a ride. i sustained a very severe blast injury. my life came to a complete halt. >> how are you doing? you look sharp today. >> i've pen building custom home for 30 years. one of the most important things for a family is a home. >> i want you to read the sign for me. >> future home of alexander reyes. >> just thank you.