John Porter and Collinson are connected with seven-years-old events. Before the invasion of 2003, Porter had been the head of the unit which task was to save the hostage from hands of the thugs at the center of Basra. But the operation went out of the control and it had affected Porter and Collinson in some ways. Since that moment, Porter is being haunted by guilt. After seven years, he tries to come back to Iraq. He meets Collinson here again.