Story of 4 Brits going out to Syria to support IS state in the overthrow of the Syrian regime. As the majority of British Moslems are Sunni and IS state supports the Sunni Muslims against the Shia followers, it doesn't take much effort for Sunni Muslims in Britain to go and support their fellow believers in Syria. The series pulls no punches of the brutality of the IS State and shows where it ignores the teachings of Mohammed "for their own ends" thereby corrupting the teachings of Islam. You can see how the four Brits start to slowly realize that the teachings of Islam is not really the main force of the IS leadership, they are looking for power and control and are just using the teachings of Mohammed, to lure the stupid and vulnerable, for their own ends. It shows how decent people are used, against their wishes to be humane, because of a corrupt ideology.