All six episodes of the limited series will be available on Thursday, August 18.
Set in 2024, the series tracks a leading team of analysts buried in the heart of GCHQ, secretly working to ward off a series of cyber-attacks on the UK in the run up to a general election. When a routine stress test of internet infrastructure goes awry, 21-year-old GCHQ intern Saara Parvan suddenly finds herself operating on the invisible frontier of high-stakes cyber warfare. In a thrilling cat and mouse game, Saara and the team must try to stay one step ahead and anticipate their opponents every hidden move. The clock is ticking as a battle with high stakes and unpredictable enemies takes place entirely online, with very real consequences. But how do you win a war most of the public don't know you're fighting?
In addition to Rylance, the series stars Simon Pegg, Adrian Lester, Alex Jennings, Maisie Richardson-Sellers and Hannah Khalique-Brown.
Peter Kosminsky wrote and directed the series. He executive produces with Colin Callender and Noëlette Buckley. Universal International Studios, Playground and Stonehenge Films produce.
