. >> serious props to paula farris. >>> coming up, a tranquil hike on a family vacation turns into along as the father searches for his missing son. uh-oh! guess what day it is?? guess what day it is! huh...anybody? julie! hey...guess what day it is?? ah come on, i know you can hear me. mike mike mike mike mike... what day is it mike? ha ha ha ha ha ha! leslie, guess what today is? it's hump day. whoot whoot! ronny, how happy are folks who save hundreds of dollars switching to geico? i'd say happier than a camel on wednesday. hump day!!! yay!! get happy. get geico. fifteen minutes could save you fifteen percent or more. >> it is the stuff of hollywood suspense thrillers, except it is real, playing out now for an american family in ecuador. off for a hike in the hills, the couple's teenage son vanishes in a matter of seconds. as it turns out, these types of things happen abroad more than you think. we went along as the father searches for his missing son. >> reporter: chris reger has been over this route time and time again, a father in search of his son. >> reporter: have you retrace