It has been 50 years since Tom Greene assumed power as dictator of England. An underground resistance group called the Ravens has emerged to oppose Greene's authoritarian rule. A new recruit to Greene's secret police, Rosalyn Carter, begins to question her allegiance after several encounters with the Ravens. She discovers her boss Francis is actually the leader of the Ravens. Rosalyn defects and joins the Ravens, helping them infiltrate Greene's live televised speech. When Greene learns of the defection, Francis is killed but Rosalyn escapes with the Ravens.