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From the sources to the Black Sea Delta: Michelangelo Pepe travels along the Danube, discovering the river that has accompanied European history. Traveling along it means traveling through time, among castles, fortresses, Roman camps, but also ports and modern factories. The crocodile, which survived the prehistoric era, has always inspired fear. We will see how these fearsome reptiles hunt their prey on the banks of African rivers. In the documentary by Sylvie Bergerot and Eric Robert. A small American city, Framingham, is an open-air laboratory: here for 56 years studies on cardiovascular diseases have been carried out. Lorenzo Pinna visited this unusual place of research and experimentation, meeting the inhabitants of the city who have undergone medical tests. It is the most important document of Norman civilization: known as the Bayeux Tapestry, it is an embroidery, made with colored wool threads, on a 70-meter long linen canvas.

The turf of soccer fields is about to change its appearance: three laboratories, including an Italian one, are experimenting with synthetic and resistant turf destined to replace natural grass: Marco Visalberghi tells us about it. In the documentary “Samsara”, from the series “Asia-Stories of the Lost Jungle”, we will see how animals live in Asian forests during the rainy season. The elephant Chang learns to swim while the tiger Tcha bathes in the river. Tides are a fascinating phenomenon, always analyzed, however few know that during the tides the earth's crust also rises. Giangi Poli went down into a cave to tell us about this surprising and little-known event. In Naples, in the area of ​​Maschio Angioino, the remains of three ships from the Roman era were found. At the time, the area was that of the ancient port and many other finds are coming to light.