In the 1980s, the U.S. and the U.S.S.R. pushed the world to the brink of global disaster as each nation rushed to build up its nuclear arsenal. As that was going on, each nation felt the acute need to spy on the other.

“When the competition is a nuclear competition, spying is extraordinarily important,” says one man in the above trailer.

CNN four-part limited series Secrets and Spies: A Nuclear Game delves into the story of two double agents operating behind the scenes during the height of the Cold War. While the world was on the brink of global disaster, history was being made in the shadows

 CNN collaborated with global agency Zealot, recently a GEMAwards finalist for Europe Agency of the Year, to capture the intensity of the situation in the creative. The above spot reflects not only the tensions between the East and the West but also between the secret agents who were operating in this space. The music was chosen to heighten that tension, drawing viewers into a real-life spy thriller.

CNN’s Secrets and Spies: A Nuclear Game airs Sundays at 10 pm ET/PT. 

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