syrians in the city of hommes live a reality few of us could imagine. trapped, cut off, under siege, bombarded daily for two years already. now, finally, there is hope for some of them to escape the nightmare. "america tonight's" sheila mcviccer has more >> reporter: this is what a cease fire sounds like in the bereceived old city of holmes. it's dangerous to be on the street, but people are desperate to leave this behind. u.n. and red crescent workers have beenshelled and shot at. they have not been able to deliver even the most basic aid. with threats of snipers, women, children, the old and sick and some men huddle in the shelter of u.n. vehicles to move across no man's land, for separating the warring sides. it's terrifying. clutching their children, their luggage, whatever they are able to carry with them from their homes, scrambling just 500 yards to safety. >> reporter: in the confusion, this woman screams for her son, somehow lost in the crowd. others abandoned bags. in the months they have been trapped in the city, food has become scarce. some