Damien has to choose between vengeance and duty to Section 20. Knox finds his sphere of influence diminishing drastically and will do almost anything to leave his mark. Section 20 goes airborne to assault the Nigerian gang protecting Knox and a major firefight ensues. Matlock reaches the end of his patience with Knox's amoral behavior. The team has to race to try to prevent Knox from carrying out his nefarious plan to destroy an entire city. Stonebridge comes face to face with the man who killed his wife, while Maj. Dalton hears Knox's secret.