In this programme, three celebrities take on iconic, long-distance hikes in some of the world's most remote locations.
At present the total nuclear arsenal of the world is no less than 27,000 nuclear warheads. Nine countries in the world (probably) have nuclear weapons and a dozen more have access to the resources and technology needed to produce such a weapon. Nuclear Secrets is a series of spy thrillers exploring the key turning-points in the race for nuclear supremacy.
Despite being an ally during World War II, the Soviet Union launched an all-out espionage effort to uncover the military and defense secrets of the United States and Britain in the 1940s.