When stones begin miraculously arranging themselves on the edge of one young man's private land, he and his friend begin trying to decipher them in any way possible. When they realize that it might be a dark portent, they become desperate to achieve their goal before it is too late.

• HTV
• Anton Rodgers
• Edward Petherbridge
• Raymond Witch
• June Brown
• Jennie Franks
• Robert Blythe