1 9 7 3 (UK)
6 x 25 minute episodes
The Jackson family are leaving Britain for Morocco, taking with them the small ornamental terracotta horse which young Linda Jackson (Lindy Howard) believes could lead them to the greatest discovery in history – the location of the Holy Grail.
The family discover they are being followed by a mysterious man in a Citroen. Another man, called Walters (James Warwick), also becomes aware that the horse could lead Linda to the Grail and he too starts to tail the Jacksons.
David Jackson (Patrick Murray) overhears a conversation that immediately places him in danger and Linda, travelling to Marrakesh, discovers a further inscription that brings her closer to the treasure.
Will Linda find the Grail before those who are pursuing her? If she does, can she prevent them from taking it from her?