The boredom of the school holidays gives way to unexpected adventure for two lads on a run-down estate when 15-year-old Malik, played by Terry Haywood, and his friend Adam, played by James Burrows, start to suspect that Malik's older brother Jamal, played by Faraz Ayub, is a suicide bomber. Following the death of their father, Jamal turned to religion, becoming a strict Muslim, while Malik headed in the opposite direction, preferring to find solace smoking dope with his mate Adam. Spotting Jamal in a heated argument with an older man, Adam suggests Jamal may be getting involved with terrorism. Malik rubbishes the suggestion, but when he finds a list on the internet of the 'tell-tale signs' of a potential bomber, he starts to think that Jamal does indeed fit the profile. His suspicions seem to be confirmed when he discovers a video camera in Jamal's room: surely it must be for his suicide message. Malik and Adam start to follow Jamal and notice that he seems to be increasingly angry. But the two friends gradually discover that things aren't necessarily as they seem...