Barney has found a wonderful place to play
- the chalk-pit or rubbish dump near his granny's home. One day the ground gives way & Barney finds himself in a cave in the middle of the dump & that's where he meets Stig. Stig is living wild & has a lot to learn from Barney but equally he has a lot to teach him. They soon become friends discover each other's ways & embark on a series of extraordinary adventures.