>> when i really started to wonder about the people who gave me life, so, when all the social kneltworking popped up, you type in names and up hope that something pops up. >> reporter: her biological father, pastor will russell, gave her up knowing he wasn't ready at the time. years later, hoping he'd meet his daughter, too. it turns out, he had begun to volunteer, as well. >> i found myself drawn here. >> reporter: for a year, both were helping the same people. but in this giant hall, they never met until dad got a phone call. she'd found him through social media. >> i said, i don't know how to say this, but i'm your daughter. >> it's one of those moments where everything fades to black. >> he was speechless for a minute. i heart stated racing. >> she said, please say something. >> i wanted him to say something, anything. >> i found myself smiling and i said, it's going to be okay. >> reporter: and thaey were abot to learn something else. they had been volunteering at the same mission all along. >> incredible to see all of us in the same place so comfortable. >> when you start thinking ab