The Haystack

'Yes, we're geeks, yes, we sit at computers all day, yes, we barely leave Cheltenham, but we are still, when it comes down to it, spies.'

Neil and Zef are two twenty-something computer whizzes with questionable dress sense and a highly developed interest in video games and Netflix. They're also the UK's 'National Defence Information Security Team' – recruited by GCHQ for their sky-high IQs and ability to work quickly and discreetly, no questions asked.

With unfettered access to the world's da...