Synopsis
As a consequence of the atomic spies, the Soviet Union joined the nuclear club, and the two superpowers compete to develop their nuclear arsenals. The Soviet Union's launching of Sputnik further heightened a sense of vulnerability in the United States, and results in the rapid development of nuclear-armed missiles, and defence-related education. Blamed for a perceived missile gap, Eisenhower is replaced by John F. Kennedy as US President. The Soviet Union is seen to have taken a solid lead in the space race after Yuri Gagarin's successful return to Earth. Interviewees include Joseph Rotblat, Boris Chertok, Andrew Goodpaster, Herbert York and Gherman Titov. The pre-credits scene features the first Soviet nuclear test in 1949.

Time Team Londinium - The Edge of Empire
In the past decade a huge amount of redevelopment has taken place in the City, providing an unparalleled opportunity for archaeologists to find out more about the old Roman city beneath the modern streets and buildings. What they've discovered suggests that far from being a relatively uncivilised backwater, Londinium was in fact one of the most sophisticated and advanced cities in the entire empire.

S1E4: Battle in the Glens | Walking Through History
Tony Robinson takes on a tough four-day trek through the Kintail region of the west Scottish Highlands to discover the story of the Jacobite uprisings of the early 1700s.