On Sunday evening Mr Kiddle locked up the chickens as normal and, to his surprise, discovered that one of the chickens, known as 'Flap Jack', was missing. By Monday evening Flap Jack was still nowhere to be found. Sick with worry, Mr Kiddle contacted the Sandon Farm Police who came to the farm to investigate. The Police discovered an area by the pig pen that looked like there had been a struggle between a chicken and an unknown suspect and asked Year 1 and 2 to help conduct an investigation.
After looking at the evidence around the farm, the children believe a cunning, sneaky fox has kidnapped Flap Jack. The children's suspicions where confirmed when a ransom letter from the fox was handed into the Sandon Farm Police that demanded a bag of KFC to be left behind the greenhouse's on Saturday night or Flap Jack would never to be seen again.
Now the children have to decide if they are going to meet the fox's demands or find some way of tricking the fox and to ensure Flap Jack is returned to the farm safely.