olympic gold medalist adam kreek was missing his pregnant wife and young son. >> i yearned for land moreuld out here. >> reporter: then one day, back home in british columbia, his wife rebecca received a happy surprise on her computer. >> it's this awesome video that adam was able to send near the end of him talking to jefferson saying, hi, jefferson, it's daddy. what did you do today? then pause. then jefferson would watch it over and over and over and answer him. he'd be like, i went to day care. >> i was wondering, have you been to the park recently? >> yeah. >> have you been playing with your lego and tinker toys? spending lots of time outside? >> reporter: a father and son interacting with each other separated by days of lag time and thousands of miles. >> i look forward to hearing back from you. i love you lots and i'm going to give you a big squeeze when i see you in miami. then we're going to go see the elephants at the miami zoo. >> yeah. >> love you a ton. >> reporter: in the early morning hours of april 6th, 2013, day 73 in the expedition, land based coordinator greg spooner g