The Duncan family receive a clear message that an imminent inter-family war looms on the horizon. Sonya's husband and Elijah's boss, the incarcerated assassin Brother X, arrive.

The Duncans all turn up the heat in their search for Brother X, while Harris takes one for the team to get the job done. Bernie finally shows his true colors.

As the war intensifies, Orlando sits down with Elijah just as one of the Duncan faithful goes down in a blaze of bullets and a family member is taken prisoner.

Brother X fails to assassinate LC and Chippy. However, things are far from over, as he has accidentally captured a Duncan during the attack. Paris, London and Sasha launch a rescue mission.

Orlando vows to get revenge for Kennedy, Sasha's captors try to get information out of her, and the Duncans seek support in their war against the Brotherhood.

By day, the Duncan's are an upstanding family who run a thriving exotic car dealership in New York; by night, they live a dangerous secret life; when they come under siege the Duncan's will have to stick