how did you find out about the plane? my dad had called me inside, and he just looked at me. and i knew something wasn't right. and then he just told me, "hey, your mom and sister have been missing." >> reporter: your dad must have been all ripped up, huh? >> there's nothing you can say. i mean he didn't -- there was no way that he could explain to his son that his sister and mom are gone. >> reporter: and imagine you hope that somebody's crawled out of the wreckage and they've got some food and water and they're in a little tent waiting for search and rescue to find them but -- >> that's the only thing i could pray for. >> reporter: as cody was praying for a miracle, mona's sister lisa also got a phone call, from another sister. >> and she's crying hysterically. and she said that mona and lindsey had left on a plane, and the plane had never reached its destination. and they didn't know where it