and a large caliber handgun because it's grizzly country. >> there's mountain lions. there's, you know, coyotes. it's not where you'd want to see yourself, let alone a young girl. >> brian kjensmo was in his super cub. he's a graduate of bobbi's flight school, and he and all the pilots knew what might be waiting out there. >> i think that every person that was in the air had worst case scenarios playing through their minds. >> 5:00 p.m., mckenzie had been missing over an hour. counting bobbi and her husband, and mckenzie's grandfather, there were nine small planes in the air, scouring the ground. over the radio, they agreed to divide the miles and miles of southern montana and northern wyoming into a grid. >> someone would say i'm going to go look in the carbon basin and someone else would say, i'm