When Ronnie and Joe are called to a suicide it doesn't take long for Ronnie to suspect foul play: Ranya Habib had no reason to kill herself. Although they are initially suspicious of a Dr. Elsayed who recently arrived in the country to visit Ranya. Although they can't find any evidence against him, Dr. Elsayed's medical history includes the practice of FGM, female genital mutilation, on young girls. Appalled by this, Kate struggles to remain professional and jeopardises her entire career leaving Jake to prosecute the case alone.

When a series of shootings claims one of their own, Ronnie and Joe have little time to grieve – they must catch the killer before he or she can reach the next people on the hit list.