British-Somali teen Muna is desperate to go on the school trip - but her parents aren't so sure. Tragedy strikes when her grandfather dies back in Somalia, and Muna must navigate a confusing mourning period for someone she never really knew - all while still hoping to persuade her mother to change her mind.

15-year-old Rocks fears that she and her little brother Emmanuel will be taken into care and forced apart if anyone finds out that their mother has left them. Against all odds, and with the help of her loyal friends, she evades the authorities and navigates the most defining days of her young life.

Four very different schoolgirls are thrown together in detention. As they plan their escape, the situation spirals out of control.