Matthew Gore is an intelligent boy chosen by a mysterious extraterrestrial visitor to be a source of information about life on Earth. As his schoolwork and artistic talent improve dramatically he arouses the suspicion of powerful groups who wish to tap into the amazing fund of knowledge to which he is now party.

• Thames Television
• Carol Drinkwater
• James Hazeldine
• Andrew Ellams
• Zoë Hart
• Devin Stanfield
• Glynis Brooks
• James Greene
• Penny Brownjohn