In 2014 a massive terrorist attack in London kills 80,000. Ten years later we join T14, the money no object, red tape defying counter terrorist organisation tasked with ensuring that this never happens again. Recruiting from the police, SAS and other agencies, T14 uses the latest technology and a no nonsense approach to fighting terrorism and related crime. One of their agents is pulled from an undercover operation when Agent 4 goes missing. Agent 4 is a man with a computer implant in his brain which allows him to access digital information. Somebody has interfered with his implant and his memory and he ends up in America with no idea what he's been doing or how he got there. Could it be one of his own colleagues who did this to him? Either way, Arthur swears to kill whoever sabotaged his mind. Meanwhile, T14 have to cope with internal espionage, assassinations and an ever worsening political crisis.