( CNN ) -- Dan Wallrath was honored as a Top 10 CNN Hero last year for his efforts to build mortgage-free homes for U.S. troops wounded in Iraq and Afghanistan . He and his group , Operation Finally Home , recently partnered with the television show `` Extreme Makeover : Home Edition '' to build a house for Army Staff Sgt . Patrick Zeigler , who survived the 2009 shooting spree at Fort Hood , Texas . CNN Heroes producer Kathleen Toner recently spoke to Wallrath about the experience , which will air on ABC on Sunday night . Kathleen Toner : How was working with `` Extreme Makeover : Home Edition '' different from one of your typical builds ? Dan Wallrath : The biggest difference was just the magnitude of it . The first day when we had the Braveheart March , where volunteers and builders march in , that was very exciting -- getting things kicked off , just feeling the energy of all the volunteers and the folks . Video : Watch volunteers arrive at the build site . And then this house was built in about 100 hours , where normally we take about six months . When you do it in a week , you see the impact of the whole community . We had so many volunteers . It was amazing how smooth everything went . Of course on our other projects , we get to interact with the family a lot more during the construction . So we missed that . But the good part about working with the show is that the family has this amazing week where everything changes . So it 's pretty exciting . Toner : Building a house in 100 hours sounds almost impossible . How did it really work ? Wallrath : There were probably 4,000 or 5,000 volunteers involved , and it was a 24-hour work site . They set up floodlights and worked 'round the clock . They had to talk to the neighbors and let them know it 's going to be going on 24/7 , but the community was all for it . What amazed me was that meant that people were volunteering at all hours . To volunteer from midnight until 4 , 5 o'clock in the morning -- when the cameras and the celebrities are not there -- that 's pretty special . I 'd built homes for 30 years and never seen anything like that . And we stayed ahead of schedule . I was impressed . They said that if we did n't exceed the record ( for their shortest build time ) , we came real close . Toner : What was the moment like when the family saw the home for the first time ? Did you really say the show 's signature line ? Wallrath : ( laughs ) We really did say , `` Move that bus ! '' It was special . There were so many people there that day who 'd helped out . It was very exciting to see the look on the faces of the young couple . It 's the same look I 've seen so many times when we 've given away homes before -- when the young man realizes that no matter what happens to them , his family is going to be taken care of . For him , going through everything he has , to see that burden being lifted off him , it was such a joy . Toner : I hear you have plans for the empty lot next door to that home ? Wallrath : We had such a good response from the community ( Salado , Texas , about 30 minutes from Fort Hood ) , so we felt like it was the right place to put another family . We spoke to the developer that we worked with , and he gave us that lot at a very discounted price . And we 've found a great couple that 's going to be in this house : another wounded veteran . It 'll just be great for them to have another veteran nearby . You and I ca n't relate to what they went through , but all of the guys tell me that when they have tough times , there 's no substitute for talking to someone who 's been through the same thing . Toner : And you 've established a fund where people can donate to help others wounded in the Fort Hood attack . Wallrath : We 're going to reach out to the other families that are all over the United States now . We 're not going to be able to build homes for every one of them . But if they need wheelchair ramps , doors widened , a room added on -- that 's the kind of thing that , as homebuilders , we 're going to be able to do . It 's so exciting to be part of it , because now all these families are not going to be forgotten . America 's going to step up , and we 're going to be able to help them . Read the full update on CNN Hero Dan Wallrath : Support , donations pour in for Hero homebuilder .
CNN Hero Dan ##vers will be featured Sunday on ` ` Extreme News : Home Edition '' Dan said thousands of volunteers pitched in to help him build a home in Texas . The home is for an Army soldier who was injured in the 2015 Fort Hood shootings . Wallrath : ` ` These families are not going to be forgotten ''