why don't we begin here, cala mesa, california, suburbs creeping out to the rim of mountains on the easternf los angeles. here is where chris and christy hall had come to live out their golden years, though they were far from old when it happened. just experienced with life and each other. >> as far back as i can remember, it's ams been chris and christy. they were never thought of as separate. they're a unit. >> these are the three daughters, courtney, the oldest, is a teacher. brianna a trainer. and ashton, the youngest here just returned from playing professional volleyball in europe. and all of them, of course, have heard scores of times the story of how their parents met. >>> it was 1978. christy had gone to see a relative at the air force base in nearby san bernardino. and quite by chance while she was there, encountered a security guard who, to her at least, looked just like elvis. it was blair christopher hall. chris to his friends. >> apparently she was a little flirty at the gate. >> in short order, chris and christy got married. she was 17, he 20. and as the girls grew up, they s