hundreds of volunteers have been working to rebuild this house for retired grandparents, jean and burt metz, who were told only the floors and walls were being rebuilt. 72 days ago, 4 feet of floodwater rushed in, leaving behind dangerous mold. how much work did you do on the house? >> we did this house from stud to completion. here is a couple, gives back to their community, two-time cancer survivor. then on top of it, their home was flooded. >> reporter: operation blessing has helped 400 homeowners in breezy point, recruiting volunteers from near and far. >> brooklyn. >> queens, new york. >> queens! >> reporter: matt chung is lending a hand, even though his own home in queens is undergoing repairs from storm damage too. >> there's no point in sulking at home, sitting there doing nothing, so, you know, the contractors were working over there, these guys don't have anybody, so come out here and do what we can do. >> reporter: then there's linda woodside, who traveled 1,600 miles from san antonio. >> we wanted to give them a new start on life, because they've had a hard time. >> i think that