>> reporter: the only way we can safely walk is in his footsteps much even though they have cleared this area and held it for the last few days, there are still areas within this that are booby trapped. ramadi was home to nearly a million people. today, as troops continue their push, we're told possibly over 1,000 families remain trapped. facing death amidst the rubble. as the battle for ramadi has raged, it's been hard to get a sense of the toll on civilians. but in this video filmed for cnn, you can see soldiers race across a sniper alley to escort back a white flag waving boy and his family. those who can't walk are carried. all desperate to escape. this man describes the horror his family faced. isis tried to take us away, he says. young, old, ill.