A cautionary tale warning of the danger of Man's meddling with nature. In the fifties it was atomic power, today it's global warming, and in the seventies it was, seemingly, the extraction of oil from beneath the North Sea (SPARKY comic ran a story in a similar vein entitled North Sea Oyl in 1976).

Young Robbie Swift is the meddling kid, sorry, hero of the story. Robbie's father, 'Chopper' Swift, is a helicopter pilot, and after the pair land on an eerily quiet North Sea oil rig they discover mysterious bubbles there. The bubbles have been released from beneath the seabed by drilling and contain a powerful freezing gas that encases anything, or anyone, they burst on in ice. This fate has befallen the rig's crew.

Robbie and his father escape from the rig and return to base, where they encounter more bubbles. He becomes separated from his father and goes on to have a series of adventures in his pursuit to warn the populace of the approaching menace.

Those were the days :- Chopper bikes ...

... Ford Anglias ...

... and red telephone boxes.