you know how much it means for these families. >> i think it was an emotion i can't describe when you know the hard work these guys went through. to see it come together for them was priceless. >> you gave up a lot. you're coming from pennsylvania down to a desert piece of earth that not a lot of people have come to. why come here and put everything, your life on hold for so many days for 33 guys you haven't met? >> we felt from the beginning that we could make a difference. or at least we hoped we could make a difference. we're glad to come down here and make a difference. that's why we came. christmas wasn't an option. we heard about how long it was going to take and we felt that we could help out. and we're proud of the everyone back home in berlin.