Carlisle United are playing Millwall and the Major Crimes Team are assigned to crowd control as punishment for their renegade ways. Typically, DI Harry Evans has other ideas and tries to thwart the local firm's plans to teach Millwall's notorious Bushwhackers an unforgettable lesson.
Meanwhile an undercover cop is travelling north with some of the Millwall contingent. His mission is to identify the ringleaders and gather evidence against them.
Three illegal immigrants have been transported to Carlisle and are about to meet their new employers.
Nothing is as it seems for Evans and his Major Crimes Team as they battle to avoid a bloodbath while also uncovering a far more heinous crime.