An explosive novel set in 1974 Belfast! 1974, Belfast Northern Ireland. British army explosives expert Lieutenant Marcus Richardson gets one last assignment: infiltrate the Provisional IRA, a violent IRA offshoot, who has begun a campaign of terror in Ulster. But, as Richardson assumes the identity of a working-class Catholic and infiltrates the Belfast Provos, he finds that the conflict over Ulster may not be as black and white as it seems, and that duty can have vastly different meanings to different people.