i'm dan wallrath. operation finally home is where we help our wounded heroes. back in 2005, i got a telephone call from a friend of mine and he had a friend of his that his son was a marine. and his son was injured by a roadside bomb. had severe head injuries. he wanted the know if i'd go over and talk to the family about remodelling their home because they were going bring steven home. >> his family will be able to use it, so we want the countertops at regular heights. >> i built custom homes for 30 years. i really was ready to go there and tell them i didn't do that kind of work. >> well, we're moving the microwave around to this end so that will be accessible. >> that's great. >> so when i got there, the father told me a picture of steven before he got injured and then after he got injured. and it just broke my heart. his situation was just -- it was just terrible. i told them -- i said well, we'll take care of it. >> let's walk back into the master. >> the job ended up being about a $100,000 remodel, but we didn't spend a dime. everybody donated materials,

i'm dan wallrath. operation finally home is an organization where we build homes and help our wounded heroes. back in 2005 i got a telephone call from a friend of mine and he had a friend of his that his son was a marine. and his son was injured by a roadside bomb. had severe head injuries. he wanted the know if i'd go over and talk to the family about remodelling their home because they were going bring steven home. >> his family will be able to use it, so we want the countertops at normal heights. >> i built custom homes for 30 years. i really was ready to go there and tell them i didn't do that kind of work. >> well, we're moving the microwave around to this end so that will be accessible. >> that's great. >> so when i got there, the father showed me a picture of steven before he got injured. and then after he got injured. and it just broke my heart. his situation was just -- it was just terrible. i told them -- i opened my big mouth and i said, well, we'll take care of it. >> let's walk back into t

our top ten cnn heroes of 2013, and this sunday, we follow 2010 cnn hero dan wallrath as he continuestruggling to create new lives after service. operation finally home airs this sunday at 8:00 eastern, and here's a sneak peek. >> there's over 50,000 wounded veterans we have now. one of the biggest challenges is transitioning from military life to civilian life. i have my good days, my bad. at first, there were a lot more bad than there were good. i can't change what happened. >> if i could wish everything back, i would. but i can't, so why let it get me down? i'm 24. i want to be able to live by myself and to be able to do everything i need to do by myself. >> i built custom homes for 30 years. back in 2005, i did my first remodel for a wounded veteran. god put a passion in my heart to help these families. >> this apartment that i live in, it's not set up for my needs. the doors aren't as wide as they should be. the bathroom isn't as big as it should be. some of the shelves are too high. >> you know, these young men and women need a lot of help. unfortunately, i don't know how to hel