i m dana king. tonight city leaders in hercules say it is time to declare a state of emergency. homes there are literally holding up the side of a hill that came tumbling down in recent rains. four have been red tagged already. four more are threatened. the houses in jeopardy are on carson street and they are part of a development. robert lyles got a look inside a red tagged home that the owner says he has never been allowed to live in. robert? reporter: well, dana, to understand the gravity of what s happening here allow me to show you something. these are k rails and they are normally found on the side of a freeway. so why are they in a quiet neighborhood? well, the city of hercules believes that these walls are the only thing that will stop this house from sliding off of its foundation, pushed by the landslide from the hillside beyond this home. now, that home run says he has never been allowed to live inside. he says he was never told that that house was in jeopardy