London, 1971. In an age of open racism, fervent nationalism and anti-establishment passion, two politically engaged and idealistic young lovers, Marcus Hill and Jas Mitra, fight back against the injustice and deep-rooted prejudice they face on a daily basis. But, unbeknownst to them, they are being targeted by Special Branch's Black Power Desk, led by police officer DCI Nicholas Pence and his deputy, Cullen.