As the Alphans are planning to explore the planet Ariel, a 'missile' attaches itself to the en route Eagle. Upon returning to Alpha, the 'missile' gives the Alphans a lunar atmosphere. But the joy at the possibility of making a new world out of the Moon is short lived, as the moon does not enter orbit around the planet or its sun, and Alpha faces destruction from the newly acquired lunar air. Written by
Did You Know?
There is a deleted scene showing the pull-down window in Main Mission being installed. See more
When air starts being pumped into Moonbase Alpha, a hatch is slammed shut, but clouds of vapor continue to seep around what should be an airtight seal. This is followed by a scene in which a window in the control room is lowered - but why would this be deemed necessary on a lunar base, and why is there no lock in case of accidental use? See more
Prof. Victor Bergman
A sun like ours. Planet Ariel with its atmosphere. It's a perfectly balanced little solar system.