to destroy kay's family. until someone with an explosive secret revealed a horrifying truth. here's keith morrison with "mystery at payson canyon". >> there are people on this glorious, sunkissed planet of ours who get up each morning to the miracle of being alive and worry. not that there aren't things to worry about, of course. whether we can do anything about them or not. but some people worry a very great deal indeed, and do try to be prepared for whatever. and one of those prepared people was a brilliant retired university professor named kay mortensen, whose sister was a woman name fern. >> i said, well kay, what would happen if i'm not prepared and i'm hungry? or my kids are hungry? can we come to your house? and he said no, i'll probably just shoot you. so, he said it jestingly. but he was definitely willing to protect.