Irish crime boss, Reagan, reaches into Scotland to target a family for abductions, millions in stolen cash, and murder. Tiger kidnap jolts Inspector Red Campbell and Detective Sanja Rao. They are stymied by death threats, silence of a family full of suspects, and pointed interference by a police superior. A reconstructed crime scene reveals the stark act of murder. The assailant, having posed as a postal employee, shoots David MacGregor dead on the front porch. The MacGregor's have guarded their privacy, but that ends in the public glare of a high-profile case. Hope for justice dims when Red Campbell is injured in a Donnybrook with another officer and suspended from duty. Sanja Rao is promoted, but the rookie's task is daunting. Her hunter's instinct is tested when the plot twists in unexpected directions. Emily makes a frantic alliance to move her children beyond Reagan's grasp. Faith, the turncoat, chooses to re-unite with her criminal associates. Red Campbell is cleared, but tonight a terrorist has fused the bomb set to kill Red and Sanja. They face the darkest hours of a Scottish night ...