Avsnitt 5

With the UK terror threat level at "severe", the drama-documentary episode based on real-life stories focuses from inside the UK’s counter terrorism unit. It tells the incident of an ISIS-inspired terrorist group planning a firearms attack, and follows with the ongoing police investigation. The story follows with Joseph, a young man who, while in prison on drugs charges, is recruited and radicalised by an Islamic extremist . Through drama and interviews, it also reveals how UK agencies are working to keep the public safe from what experts fear is the most likely scenario for a UK next major terror attack.