When new teacher, Mr Middleton, leaves his inner city, London school and arrives at a British village to work at the local grammar, it doesn't take long for him to start feeling uncomfortable. The place is strange - students are extremely and unanimously well behaved, eerily unlike usual children of that age. The single difficult student is the new kid, Georgie, who is violently injured in a fight, even though the school is adamant, 'there are no fights here...' Mr Middleton is surprised to discover a very young student from a "special class" was responsible. The four kids in this class are - exceptional. Each forming a hive mind, that keeps the students and teachers in the school calm and focused thanks to the medication provided by an undercover government experiment. The result is that these socially under-developed children force any wrongdoers to pay for their actions with murderous results. When the deaths start being uncovered, Mr Middleton begins investigating and unravels a dark conspiracy, deeper than even he could have imagined.