Meet the next generation of British policing - powerfully smart, classified and here alreadyIn the high-stakes world of crime, Detective Inspector Nikki Ross is on the fast track to success. When a hot tip gives the Major Crimes Unit the chance to solve two cases, it should have been textbook. But the dangerous stakeout spirals out of control until one of Nikki's team is fighting for their life, while she is left wounded, blamed, and teetering on the brink of suspension from the job she lives for.With her future hanging by a thread, Nikki is thrown an extraordinary team up with a top-secret AI to crack a cold case and she may yet save her career. It's a risky an unconventional partnership with a not-so-Robocop AI and its enigmatic handler, but Nikki has no choice. With only seven days to solve the unsolvable, she must perform a miracle or lose her career forever.As if that weren't enough, a live case breaks, one that nobody else takes seriously. With a killer on the loose and everything to prove, Nikki is faced with an impossible decision. She would risk everything to prove herself but what if the cost is another person's life?In this pulse-pounding crime thriller, DI Nikki Ross must race the clock to navigate a treacherous web of deceit in the pursuit of a faceless killer. Lives hang in the balance and the line between justice and sacrifice has never been thinner.