England, late twenty first century. Following a series of political, economic and social struggles, a new breed of organized crime has been born. Young, daring and tenacious, they play on the rising tensions, prey on the vulnerable and the disillusioned, taking control of the streets. Police response: a new breed of undercover police officers."The criminal fraternity that we struggle against today was born out of the problems that were facing this country. They took advantage of the tensions and the economic crisis, of peoples growing fears in uncertain times. They got inside the system. Corruption, sometimes at the highest levels, spread like wildfire. Times were fast changing. A new breed of organised crime was born. Young, daring, tenacious. They had the talk, the money and the ability to corrupt and recruit disgruntled individuals. To combat them, we created an aggressive, clandestine, deniable unit of undercover police officers. Their job - infiltrate right to the very top of the chain. Gather intelligence, play the mind games, break their defenses. When, if the times right, eliminate the threat. Crimson Bevin was the best in the unit. Now we need her more than ever." - Detective Chief Inspector Roger Talbot.When her former lover and now organized crime boss Louise Tilly returns, former Detective Inspector Crimson Bevin should confront her demons, but instead turns her back. However, with the police struggling to maintain the status quo with their numbers dwindling against the tide of Tillys power, Crimson is forced to return to the brutal and terrifying world of undercover policing."My job is all about mind games. Get into their heads, pluck their strings and then.... Its not an easy job - working undercover. These kinds of games - theyre not something we expected to have to play with such... violence. Times change. We let the rot in. Someone had to pick up the pieces. Thats where we came in." - Crimson Alexis Bevin, Detective Inspector. Retired but conscripted.