Barney and his sister Lou go to stay with their Gran over the holidays. Barney goes out to play and accidentally discovers Stig after falling down the side of the dump and through into Stig's cave. Stig and Barney instantly become friends. Just before he has to return home, Barney is given a flint by Stig. Barney's sister does not believe in Stig when Barney returns and tells them about his day. Early the next day, Lou and Gran go off to town and Barney looks in a book to check on his flint too…
Barney and his sister Lou go to stay with their Gran over the holidays. Barney goes out to play and accidentally discovers Stig after falling down the side of the dump and through into Stig's cave. Stig and Barney instantly become friends. Just before he has to return home, Barney is given a flint by Stig. Barney's sister does not believe in Stig when Barney returns and tells them about his day. Early the next day, Lou and Gran go off to town and Barney looks in a book to check on his flint too…