
Young prodigy Martin Smith is recruited by the mysterious Icarus Foundation, a shadowy organisation that exploits gifted children to develop advanced weapons, including a 'quark bomb'.

Royal Navy missile tests are failing mysteriously. Martin Smith, a maths prodigy at a school unable to recognise his talents, is noticed by the Icarus Foundation via his secretive use of the school computer to research pure mathematics.

Martin tries to settle in at Falcon Lee with its bizarre teaching methods, tutors, pupils and games. Meanwhile, British intelligence realise that child prodigies may be doing the research that no one else is doing.

Falcon Lee turns up the pressure on Martin and British intelligence is warned off investigating them. Martin and Sue begin to understand that the challenges set for them by John Doll are pieces of a bigger puzzle they can't see.