Episode 1
The escape of deadly Sarin nerve gas in a London hotel alerts British Intelligence that a terrorist cell is operating in the city. Joined by American counter-terrorist agents from the FBI, CIA and NSA, the search begins for the terrorists' next target.
Episode 2
Episode 3
Although the inter-agency team is officially disbanded after a terrorist bombing in Nigeria, the agents decide to stay together and pursue the deadly and determined terrorist cell.
Episode 4
As the terrorists prepare to strike in the American heartland, Muhammad, the leader of the terrorist cell, convinces some young boys in Jordan to Join his cause.
Episode 5
A CIA team lands in Syria and storms a house where they believe Muhammad is staying. Later, agents in the United States and Jordan attempt to stop two separate terrorist attacks - unaware that the final stage of a second Sarin gas attack in London is already in motion.
Episode 6
