Over the course of two years, filmmaker Jamie Roberts meets those spreading extremist Islamic fundamentalism in Britain, including a bouncy castle salesman who is now one of the world's most wanted men.
Abu Rumaysah
as Jihadi Sid
Khuram Butt
as Self
Jamie Roberts
as Narrator
Mohammed Emwazi
as Jihadi John
Mohammed Shamsuddin
as Self
Abu Haleema
as Self
Theresa May
as Self