Episode 1

Explosives Officers Lana Washington and Joel Nutkins are called to investigate a potential bomb factory in a London housing estate.

Episode 2

As the bombing campaign intensifies, so do inter-community tensions as the far-right group English Flag take to the streets.

Episode 3

A far-right group called the Crusaders claim responsibility for the mosque attack as Lana finds a forensic link between the bomb at the mosque and the one at Westhaven - were they both bombed by the same person?

Episode 4

Following the murder of a Counter Terrorism officer, Lana Washington and the EXPO team race against time to stop the bombers before they strike again.

Episode 5

Lana struggles to come to terms with her personal loss, and her failure to prevent the explosion. Meanwhile, Counter Terrorism officers launch a manhunt for someone.

Episode 6

The EXPO team are stretched to breaking point dealing with a complicated device planted at the Campaign HQ. Lana tells Karl something important.