TV Guide PBS America Tuesday

Paul Murton turns his attention to the country's landlocked islands. He travels to Loch Lomond to get a bird's-eye view of an iconic beauty spot, before gaining an insight into the lives of its residents

Professor Robert Bartlett examines the impact of the conquest of Britain and Ireland, and learns how William the Conqueror built scores of castles and cathedrals to impose his control and intimidate the population. The ruler also commissioned the Domesday Book to survey the wealth of the land and raise revenue, and set in motion the linguistic and cultural transformation of England. The Normans blended well in Scotland, but faced fierce opposition in Wales, and promoted divisions in Ireland which some claim still exist to this day

In the midst of the Cold War, the desire to spy behind enemy lines leads to the development of some of the most sophisticated reconnaissance technologies the world has ever seen. The US finds a way into Soviet airspace through overflights of their top-secret stealth plane, the U-2. But the clock is ticking, and it's only a matter of time before the Soviets unravel the operation with the capture of American pilot Captain Gary Powers. With the start of the space race, engineers from former Nazi Germany are poached to help either side to make massive leaps in space exploration, using technology that will also be used as tools of war

Part two of two. How Israel ended up fighting wars in Gaza and Iran - and the role of the US. Plus, Benjamin Netanyahu's long campaign to defeat Iran, the conflict with the Palestinians and his difficult relations with the US over peace and Iran's nuclear ambitions