secret plan,
plot,
game a secret scheme to do something (especially something underhand or illegal); "they concocted a plot to discredit the governor"; "I saw through his little game from the start"
political science,
government,
politics the act of governing; exercising authority; "regulations for the governing of state prisons"; "he had considerable experience of government"
conspiracy -
a secret agreement between two or more people to perform an unlawful act