两位意大利国宝级厨艺大师安东尼奥·卡路奇欧和詹纳罗·康塔多，回到阔别50年的祖国意大利，走遍意大利各个大区，回忆童年的味道，寻找融合的美味。第二季共四集，在第二季的旅途中，两位意大利名厨带领观众，在具有深厚底蕴的意大利美食中，提味意大利南方的童年回忆，意大利人的"扮靓"，意大利北方人的“求生之道”和意大利人的“男子汉气概”。
NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One study reveals that well-timed bursts of pink noise can nudge a person's brain waves, extending periods of slow-wave, or deep, sleep. And toddlers learning new words show that taking even a short nap after learning something new can help the information stick. And when it comes to sleeping poorly, it may turn out that having interrupted sleep can be just as harmful as missing sleep altogether. As scientists come to understand the powerful role that sleep -- or lack of it -- plays in everything from memory to trauma to emotion regulation, one thing is clear: This biological function is as crucial as it is complex.
城市是人类文明高度发展的产物，也是一个高度人为制造的环境。能够在城市生活的野生动物，一定是将自己嵌入到了城市运转及人类活动，对生态系统能否正常运转具有指示作用。它们和人类一样，也是城市里的居民，它们的存在有着极为重要的价值。本片以城市里的野生动物为主要观照对象，以启发人们的环境保护意识，思考更为合理的城市发展之路：怎样的城市规划及运转方式，才会为人类提供更美好的生活，实现人与自然的和谐发展。
