Tonight, the man who came back from the dead after open heart surgery in the street; the 999 call made by a man trapped in mud with the tide rising around him; and the first aider who risked his own life to help a colleague buried alive in a hopper of acidic dust. Also, Juliet Morris meets Doreen Lawrence of "999"'s real-life "Baywatch" in Perranporth, Cornwall, and there are details of free life-saving courses in Northern Ireland.
