This programme brings, for the first time, a moment-by-moment account of the second moon landing - as it happened. Because the television camera failed on the moon we have had to wait for the processing and editing of some of the most spectacular space film and sound tracks yet to be screened.

This film records the astronauts' split-second response to those critical moments when lightning apparently struck the space craft on lift-off. It also shows them relaxing on the moon, in the nearest thing yet to a lunar laugh-in, as they sing, whistle, chat and 'send-up' themselves as well as their more sombre predecessors.