S1 • E1
The British PM deals with infighting in his cabinet, damaging press leaks and his daughter's graduation. But then he faces a major solar storm that affects most of Europe and has the potential to send them all back into the Dark Ages.
S1 • E2
With the nation in the full grip of the crisis and experiencing the worst blackout in the history of the UK, Sutherland and his team are forced to work around the clock to restore power. Meanwhile Anna reconnects with Edin, but this dalliance with her past love becomes more dangerous than she anticipates.
S1 • E3
As the country continues to face darkness, Sutherland, Anna, Fraser and their teams pay a visit to the worst affected area in Northumberland to see the situation on the ground. But with the Prime Minister away, Archie's incendiary comments on the dark underbelly of public mood threatens to cause more problems for everyone.
S1 • E4
Prime Minister Sutherland's knowledge about his daughter's part in her friend's death is questioned; a new threat rears its head.
S1 • E5
With the nation sliding further and further towards anarchy, Rachel faces difficult questions about Ellie. Meanwhile, Fraser says goodbye to his father and grows closer to Francine. And as the influence of "People's Justice" grows ever-powerful, Sutherland is forced to consider more extreme measures to retain control of the country.
S1 • E6
As anarchy explodes on the streets and the nation is rocked with night upon night of rioting, Fraser and his team reach the endgame in their mission to get the lights switched back on in the Red Zone. Meanwhile, with his personal life imploding, Sutherland is forced to fight for his political life as Archie finally fires his first shots.
Robert Sutherland
Anna Marshall
Archie Glover-Morgan
Eleanor James
Francine Bridge
Peter Mott
Fraser Walker
Rachel Sutherland
Joseph Obasi
Audrey Hemmings