Escalation. a frantic effort to rescue people trapped in a cave after flooding blocks the only way out. time is running out to save them. plus, a couple of firefighters, now missing. news, just minutes ago, turning up in the search. we'll talk to one of the firefighters about the latest in the case. but first, people in england, coming out to watch three cooling towers at a power station come down. but it did not go as planned. this is oxfordshire, about 50 miles west of london. , the power collapse. tens of thousands lost power. southern electricity networks blamed it on debris that hit the p...