In 1987, fourteen-year-old Junius Posey sets out on the cold Cambridge (Mass.) streets to find his brother’s killer in a cluster of low-income housing towers—prime drug-dealing territory. After committing a murder to protect his friend, he finds himself without protection from retribution. His mother gives him fifty dollars and instructions to run, but Junius refuses to live a life in hiding. Instead, shocked by the violence he’s created and determined to see its consequences, he returns to the towers to complete his original mission.