questions, please let me know. i'll try to explain things thoroughly before i do them so that i don't try to catch them off guard. >> this is five, six weeks into a six-month mission. >> yes, sir. >> that's a long time. >> it's a long time. >> family, friends, you miss people back home. >> of course. of course. it's hard to be away, but it's also great to be knowing that we're doing really good work here. a lot of mixed emotions. you have those days where you do miss home, but then you come in and see someone's smiling face like marlene, and just so much you can do, and it really brings you up again. >> after all the waiting, it's finally time. nurse kimberly, marlene, make their way from the overnight ward to the surgical floor. >> good luck. congratulations. >> a handover. some goodbyes and well wishes. and marlene is now in the hands of the operating room nurses. the operation she's waited so long for now just moments away.