Now working with the brutal Liberation Militia, Callum makes a decision that threatens to put Sephy's life in great danger. 

When the McGregor family receives life-changing news, Callum desperately tries to discover the truth. Sephy makes a discovery that forces her to question everything she's known. 

Albion is shaken by the aftermath of events at Demwa Hospital, Sephy makes a mistake that changes Callum's life forever. 

Prime Minister Folami declares a public holiday for the annual Midsummer Festival, a Nought tradition, in order to promote integration and quell the unrest. But Kamal orders Callum and the Mercy Point cadets onto the streets to stand patrol, to rile the Nought festival-goers and cause maximum chaos.

Callum and Sephy take desperate measures to find somewhere they can be alone together, but Lekan suspects Sephy is hiding something from him and is on the rampage.

London, Present Day. Callum McGregor is a Nought, a white member of the underclass. Sephy Hadley is a Cross, a member of the black ruling class and daughter of Home Secretary Kamal Hadley. On a night out with his brother Jude, Callum's friend Danny is brutally attacked by two police officers. It's the tenth police brutality this year, and the Noughts are enraged. Sephy falls into danger and Callum needs to save her - but she makes a terrible mistake and must make it up to him somehow. Meanwhile, Nought agitator Jack Dorn exploits the growing unrest for his own gains and takes matters into his own hands.