London: 1972. When a defecting KGB officer, Arkady Malinov, reveals Operation Glass, a devastating Soviet plot that could change the course of the cold war, Daddy, the head of MI5, assembles a secret team to investigate. As the Soviets awaken a list of sleeper agents all over Britain, Daddy's team must move swiftly to gain information about the plot.

In the secret world of espionage, the players are set and the fight to save Britain begins. A complex invisible war is being fought by skilled spies trained in the high stakes world of covert espionage. In 1972 London, tensions are at a terrifying peak as the world's super powers plot against their enemies. The threat: a dangerous and deadly Soviet plot, designed to bring Britain to its knees, dubbed Operation Glass. This is where The Game begins – a stylish, character-driven spy drama that explores the lives and lies of the invisible soldiers fighting a secret war.