The UK threat of mainland attack, as we stand today, remains at ‘substantial’. This means that a terrorist attack remains a strong possibility and could occur without warning. Figures revealed that the number of terror arrests had risen by sixty per cent in the year to September 2012. Hellfire Landing is based on what could happen if real-world terrorists decide to launch a coordinated attack within the UK. A major disaster could happen at any moment, and in just five minutes could affect the lives of thousands of persons in the UK. Could it really happen? Yes, and the consequences could be mind-blowingly catastrophic. And, yes, it could happen in any country in the world which has similar infrastructures to those in the UK.