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Episode 1

Episode number: 1

Overview: Prime Minister Robert Sutherland, his Chief of Staff Anna Marshall and new Home Secretary Joseph Obasi assemble the emergency committee “COBRA” to respond to a potentially explosive situation in Kent.

Episode 2

Episode number: 2

Overview: Following devastation in Kent and the cyber-attack which continues to jam communications, the Prime Minister convenes an emergency COBRA meeting.

Episode 3

Episode number: 3

Overview: COBRA is assembled when fresh disaster strikes, as a breach at Dover port suggests an insidious threat. The PM's strategy is tested by an online activist.

Episode 4

Episode number: 4

Overview: The team try to understand the latest discovery, while Francine's attack on Lord Singer is met with delight by the Labour leader.

Episode 5

Episode number: 5

Overview: Rachel Sutherland is dismayed by the fresh media assault on her reputation, but Robert is distracted - for somehow, Firestorm is back, and spreading misinformation about the water supply.

Episode 6

Episode number: 6

Overview: Reeling from the events in Kent, the COBRA team are briefed by Eleanor on the nature of a sophisticated malware which has infected the UK’s critical infrastructure.