Between 1970 and 1972 a group calling itself the Angry Brigade set off bombs and fired guns at property across Britain, each attack followed by a communiqué explaining the target and the group's politics of autonomous action against the state and capital. Gordon Carr's film, made for the BBC and first broadcast in January 1973 just after the trial, traces the group's roots in the libertarian left of the 1960s and follows the campaign target by target: embassies of repressive regimes, police stations, army barracks, boutiques, factories, and eventually the homes of Cabinet ministers, the Attorney General, and the Commissioner of the Metropolitan Police. That escalation triggers a wave of police raids against a milieu officers struggle to even categorize, unsure if they are chasing an organization or just an idea. The film closes with the Stoke Newington Eight conspiracy trial at the Old Bailey, the longest criminal trial in British legal history, built on Carr's research inside both the anarchist scene and the police investigation.