After excop Stevie O'Neil becomes the prime suspect in a murder investigation, Midnight is forced to deal with what she considers her greatest failing: the death of Jason Templeton when she first became chief. Having never been able to catch the person responsible, it's a guilt Midnight has carried ever since.
Dibbins is assigned to the case and infiltrates the suspect gang, becoming ever closer to Stevie in the process. But it isn't long...