Blaketon is appointed Warning Point Officer - in case of nuclear attack, but soon  Greengrass grabs the initiative to make money on the security  issue. A pupil smashes a front window of the teacher's car. Later another pupil  drinks poisoned water in the woods and Bellamy's Granny leads a protest against noisy lorries.
               
              
                Casts: 
                Derek Fowlds, William Simons, Tricia Penrose, John Duttine, David Lonsdale, Peter Benson, Gwen Taylor, Lisa Kay, Steven Blakeley, Joseph McFadden, Rupert Ward-Lewis, Nikki Sanderson