Watch "Nightline" tonight to see the story of two combat veterans making a difference by building homes for fellow veterans injured at war. Purple Heart Homes Inc., founded by Dale Beatty and John Gallina, is a group that remodels existing homes and sometimes builds homes from scratch to "create an injury specific, barrier free-living environment" for wounded veterans.

Read more about Purple Heart Homes here and watch the full report on "Nightline" tonight at 11:35 p.m. ET.