During the Cold War, the Arctic became a spy’s playground as the great powers jostled to gain control of the territory and its resources.

From sunken submarines, to nuclear test sites and thousand-kilometre surveillance networks, this series draws on a wealth of expert testimony, animated archive and high-end CGI to bring this untold narrative to life.

For the first time, discover how the Nordic nations were forced into a delicate game of brinkmanship between East and West, with every move risking nuclear catastrophe.