The novel is largely based on factual events and follows two main characters: Terry Winters (based on
Roger Windsor), chief executive of the National Union of Mineworkers; and Stephen Sweet (based on
David Hart), an advisor to the Thatcher government. The novel refers to contemporary events including the murder of
Hilda Murrell, the
Battle of Orgreave, the involvement of the police and
MI5, and the
NUM's links with the Soviet Union and Libya. ==Structure and style==