walker was hit by an i. i.e. d. in afghanistan back in 2012. hey, megan. >> reporter: well, it certainly is a special homecoming. has come to his brand-new home that you see behind me here, a home that was donated to him and was specially designed with his special physical injuries in mind here. now, army staff sergeant christopher walker was severely injured when he was hit by that i.e. d. in afghanistan. he lost both of his arms and a leg. his facial bones were shattered. it's been a long and difficult recovery but today he starts a new chapter in his life and here, you can see he's arriving here, just a little while ago, at his new home. sergeant walker is now the proud owner of a high-tech home specially designed around his physical needs. it's right here in alexandria, and he couldn't be more thrilled. it's all been made possible by the garry its rise program. in fact, the foundation shot the video that you're seeing inside the home here. now, the houses are donated to wounded veterans like sergeant walker. they are chalk full of smart technology. the lights, the thermostat, for example, even the blinds, th