ID2: Shadwell Army follows a British undercover police officer who infiltrates a football hooligan gang to stop a terrorist attack. As he becomes more involved in the dangerous world of football hooliganism, he must balance his duty to protect innocent lives with his own safety.

In the gritty streets of England, an undercover cop infiltrates a violent hooligan gang to bring them down. As he delves deeper into the world of hooliganism, he is torn between loyalty to the police and his newfound brotherhood with the hooligans.