In a few weeks, Scottish teenager Liam will turn 16. The film opens with him using his tripod-mounted telescope outdoors on a clear night to show other children the stars and planets. He and his friends exemplify the violent "ned" subculture; they no longer attend school, but instead, hang around isolated areas or wander about all day long. They get money by illicitly selling untaxed cigarettes in a pub, and defy the police. Liam's mother is currently in prison, for a crime she did not commit. She will be released in a few weeks, in time for her son's 16th birthday. She has a boyfriend named Stan, who works as a drug dealer with Liam's grandfather, Rab.