ships dock daily bringing in food, medicine, sometimes weapons. waiting to get out, human cargo. there is an estimated 5,000 my grants workers of many nationalities stuck since the fighting began, living in dirty and dangerous conditions not. >> we are praying to get back to our country. >> reporter: when the opportunity comes to leave, there is a crush to get on board. no one wants to be left behind. this ferry boat chartered by a humanitarian group is evacuating migrant workers and the seriously injured. one man brings what is left of the rocket that shattered his friend's leg. a rebel fighter hurt in battle, unlike 9-year-old mum, struck in the face by shrapnel while playing outside. >> this is what happens when you randomly bomb a city with innocent people. >> reporter: on board the boat, doctors do what they can in cramped, unsanitary conditions