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第 季第 4 集1 - Boko Haram/Unnatural Selection
2016年2月4日36 分鐘[HBO] HD. Season Four Premiere. The fight against terrorist group Boko Haram; a look at a new gene-editing technique that could change everything.可供購買第 季第 4 集2 - Escape to Europe/Cycle of Terror
2016年2月11日35 分鐘[HBO] HD. The journey of refugees from Syria to Europe; the global reaction to the ISIS attacks in Paris.可供購買第 季第 4 集3 - Right to Die
2016年2月18日32 分鐘[HBO] HD. An exploration of the moral, political and personal questions raised by how and when we end our lives.可供購買第 季第 4 集4 - Beating Blindness/White Collar Weed
2016年2月25日33 分鐘[HBO] HD. Advances in the fight against blindness; small-scale weed farmers face corporate takeover.可供購買第 季第 4 集5 - Meathooked/End of Water
2016年3月3日32 分鐘[HBO] HD. Examining the environmental harm of our meat addiction; assessing the depths of the world's water crisis.可供購買第 季第 4 集6 - Return to Yemen/Church and States
2016年3月10日33 分鐘[HBO] HD. Returning to the underreported conflict in Yemen; an exploration of the ongoing battle for LGBT equal rights in the U.S.可供購買第 季第 4 集7 - Palestine Now/Viva Cuba Libre
2016年3月24日34 分鐘[HBO] HD. Exploring what life is like for young Palestinians in 2016; the thawing of the political divide between Cuba and the U.S.可供購買第 季第 4 集8 - Afghan Women's Rights/Floating Armories
2016年4月7日34 分鐘[HBO] HD. The fight for dignity and rights for Afghan women; a closer look at who is protecting global commerce today.可供購買第 季第 4 集9 - The Future of Energy
2016年4月14日33 分鐘[HBO] HD. An in-depth look at the future of how we make and use energy.可供購買第 季第 4 集10 - Trump in Dubai/China in Africa
2016年4月21日33 分鐘[HBO] HD. The plight of migrant workers in Dubai; the increasingly prominent business relationship between China and Africa.可供購買第 季第 4 集11 - The Deal/City of Lost Children
2016年4月28日35 分鐘[HBO] HD. Exploring the recent Iran deal from both sides; the tribes of homeless children living along the tracks in Kolkata, India.可供購買第 季第 4 集12 - The End of Polio/Collateral Damage
2016年5月5日34 分鐘[HBO] HD. The fight to eradicate polio in Pakistan; examining the lasting effects of unexploded landmines in Southeast Asia.可供購買第 季第 4 集13 - State of Surveillance
2016年5月26日31 分鐘[HBO] HD. An exclusive with Edward Snowden about the state of digital privacy and security.可供購買第 季第 4 集14 - Heroin Crisis/New Age of Nukes
2016年6月2日33 分鐘[HBO] HD. Tracing the causes and impacts of America's heroin crisis; the costs of the U.S.'s largest nuclear modernization effort.可供購買第 季第 4 集15 - Flint Water Crisis/Libya on the Brink
2016年6月9日34 分鐘[HBO] HD. A look at the ongoing water crisis in Flint, Michigan; the fight to save Libya from the rise of ISIS.可供購買第 季第 4 集16 - Die Trying
2016年6月16日33 分鐘[HBO] HD. Exploring what's being done to tackle ALS and the hurdles faced by patients and drugmakers alike.可供購買第 季第 4 集17 - Student Debt/Fecal Medicine
2016年6月23日33 分鐘[HBO] HD. The cost of higher education in the U.S.; the medical revolution ignited by the rise of fecal transplants.可供購買第 季第 4 集18 - The New $pace Race/Closing Gitmo
2016年6月30日32 分鐘[HBO] HD. The race to Mars and the new technologies that will get us there; inside Guantanamo Bay and what really happens behind the camp's walls.可供購買
