by Kit Pedler and Gerry Davis
[Starring] John Paul, Simon Oates, Robert Powell
with Joby Blanshard, Wendy Hall
Guest stars Ray Brooks, Hamilton Dyce, Tommy Godfrey
An object drops into the sea near a South-coast pier. To Sam and Geoff it appears to be a weather-detecting device. They start to dismantle it. What the object actually is, however, is something very, very different...