The streets of Greater Manchester are awash with drugs and weapons, and the gangs that control this multi-million pound business will stop at nothing to protect and grow their business. The Dolsen family are one such gang. When the head of a rival Yardie gang is found brutally murdered, revenge attacks were always likely to follow, and gang members were unlikely to be the only ones hurt. DCI Priest teams up with the Serious Organised Crime Agency (SOCA); but they soon admit to conflicting objectives which may unravel their alliance, and prove to it be more of a hindrance than a help. Was DCI Priest was about to undertake his most challenging investigation to date?