PBS America (Freeview) Sunday

Maiya May returns to Florida to learn how climate change is impacting ocean currents before meeting Stacey Abrahms in Georgia to learn about her non-profit organisation

The story of Meyer Lansky, an associate of Lucky Luciano who was linked to criminal financial operations, but the FBI struggled to pin anything on him - or find his riches

What happened when the FBI pursued the five families who ran organised crime in New York, and the fate of two informers is revealed

How fortresses redefined the art of warfare, starting with the daunting fortress of Richard the Lionheart - an amazing feat of medieval military construction

Catholic king Louis XII's troubled bid to overcome La Rochelle - the largest Protestant base in France

Joan of Arc's victory at the Siege of Orléans, which took place from October 1428 to May 1429. It proved a turning point in the Hundred Years' War between France and England

The Battle of Alesia, in which Roman forces under the command of Julius Caesar besieged Alesia, within which sheltered a confederation of Gallic tribes

Docu-drama about the 1918 Flu pandemic, which killed more than 50 million people, featuring personal testimony. Narrated by Christopher Eccleston

The story of the two million US soldiers who fought alongside French and British troops on the bloody battlefields of the First World War

Docu-drama about the 1918 Flu pandemic, which killed more than 50 million people, featuring personal testimony. Narrated by Christopher Eccleston