This is what you might call a hard day at the office. This pilot is confronted with a situation where a no-radio aeroplane is in the circuit in low light and all he knows is that he's nearly on top of it and can't see it! To make matters worse, he doesn't recognise the type and has no idea what he's looking for. With some excellent work from a third pilot the story has a happy ending. But, what if there was no third plane in the circuit that evening?