i'm getting food, water, the rescuers are almost here. it's important that children or anybody trapped keep that hope going. as you imagine, they're in a very bad situation. they need to do what they can to try and survivor. >> what about the shock? is shock a real concern as time passes? 48 hours is a long time, long time to be trapped in a small space? >> it's a very little time. and there's two different kinds of shock that we need to talk about, one is the psychological shock of it happening. obviously, that's a bad thing but more importantly is the body shock itself. and that shock is when the body starts slowing down and the body flow stops going to the organs and they start dying. once they start dying, the person is in danger of dying, too. it's important that they keep them hydrated and fed. but more importantly, that they get them as soon as they can. we've all seen the survival situations where people survive