>> skylar neese. >> their world had fallen apart. their only daughter had been disappeared into the night and now she had been gone nearly 24 hour. where was skylar? >> the investigation begins and concern for skylar begins to grow. coming up. >> just had this horrible feeling in my heart that something terrible had happened. >> mary told me that night, something is wrong. something is bad wrong. >> a grainy piece of videotape is about to give police one giant clue. what can they glean from this? >> she slowly walked down to a car and she got in the back seat. >> when "dateline" continues. hes only activia has billions ofhes our live and active probiotics. so, let's make this the summer of loving your gut. activia. love for your gut. with the world's first invisible trailer. invisible trailer? and it's not the trailer right next to us? this guy? you don't believe me? hop in. good lookin' pickup, i will say that. oh wow. silverado offers an optional technology package with up to 15 different views - including one enhanced view that mak