On the planet Stentor, silence isn’t just golden; it is the key to maintaining peacefulness in globe devastated by a great battle. But that calm is shattered when a group referred to as the Ghazi develop a new technology that intercepts aged Earth radio signals and rebroadcasts them over the planet. Each day the din grows more deafening. When Captain Sulu as well as the crew from the U.S.S. Excelsior are summoned to investigate sub-space disturbance emanating from Stentor, Sulu and his communications official Terra Spiro discover that the Ghazi in fact believe the signals will be the voices of the gods, and Sulu must disabuse them of this belief before the noise drives Stentor to battle.