S01E01 S.O.S. From Venus
While returning to Earth from a hazardous journey to Mars, the British rocket crew hear a mysterious distress call from the vicinity of Venus.
Cut off from their rocket by an active volcano, the astronauts start the long trek across the Venusian desert - and are attacked by pterodactyls. But these pre-historic flying reptiles are only a foretase of what is to come.
Returning from their unexpected trip to Mars the crew of MR4 intercept a distress signal from Captain Wilson, a U.S astronaut, and must change course for Venus to attempt a rescue in space. However, through the space periscope, Brown sees what appears to be a settlement or a city of some sort. Desperate to investigate, Brown edits Wilson's message and tricks the crew into landing Venus so as they can rescue him.