Drama

Following a cyber-attack on the UK National Grid, electricity substations have been infected by a computer virus that can shut them down at a moment's notice. Once blackouts commence, it would be a matter of hours before country is thrown into utter chaos. Pressure is mounting on agents at GCHQ to neutralise the threat and find the source of the attack. Critical infrastructure is the new front line of a war that is being fought through keyboards and computer networks.