The film followed DI Regan and DS Carter as they became embroiled in a deadly political scandal. One of the leading members of the British government, Charles Baker (Ian Bannen), is about to secure a huge deal with OPEC, stabilising the world oil market and boosting Britain's position within it. Baker is the rising star of the government, regarded as a future prime minister, and he is closely controlled by his urbane, manipulative American press secretary Elliot McQueen (Barry Foster).