第1集本期内容介绍：探险团队将深入啤酒、小香肠和保龄球之乡——威斯康星州的密尔沃基。第一站是废弃的贝斯特啤酒厂——贝斯特蓝带啤酒的发源地。他们将探访酿酒车间，揭开贝斯特蓝带啤酒的酿造工艺，并寻找近百年来难得一见的古老酒窖。第2集本期内容介绍：探险团队的四位专家——一个城市历史学家、一个机构工程师和两个世界级的城市攀登高手，将展开穿越时空的冒险之旅。他们将深入"风之城"——伊利诺斯州的芝加哥，发掘那里的历史遗迹。

For the past eight years, the U.S. Army's Sniper School at Fort Benning, Ga., has hosted the International Sniper Competition; where elite two-man teams compete to earn the coveted title of "top sniper." In this grueling competition, the participants' precision, camouflage, stalking and observational skills are put to the ultimate test. 　　Eighteen challenging events examine the teams' expertise in long-range shooting, urban combat and covert maneuvering through realistic conflicts and environments. Bringing together the most elite snipers from around the world, the competition showcases thirty-three teams from branches of the U.S. Army, Marines, and Air Force, and for the first time ever includes a law enforcement team-a SWAT team from Pittsburgh, Pa. The international field includes representatives from Canada, Denmark, France and Ireland. Since some military teams are comprised of active special forces, the identities of many of the competitors have been concealed in order to ensure the safety of the personnel.

Man runs with hand in front of face away from explosion as seen on Against The Elements (DCL) 　　Against the Elements reveals the science behind the most heart-stopping natural disasters ever captured on camera. 　　Discovery Channel’s groundbreaking forensic investigations reveal what caused these catastrophes and what we've learned from past disasters to protect us in the future. 　　We'll meet the people who survived against overwhelming odds and we'll talk to scientists and experts who've dedicated their lives to understanding these amazing natural phenomena. 　　The forces of earth, water, wind and fire impact us all every day ... sometimes benignly, sometimes deadly. And it's in that instant, that moment when ordinary weather turns extraordinary, that we realise life is an ongoing battle ... Against the Elements.

塔德贝格是高级订製刀具设计师，客户包括刀具业的重量级人物，他与两个哥哥联手在加州佩塔路马开业，希望能满足他收到的大量订单。塔德是世上最优秀的刀具设计师之一，接受委託打造被称为「死神菜刀」的作品，因为这种刀具结合切肉菜刀与死神镰刀的双重特色。有了哥哥做为事业伙伴，塔德努力带领团队达成任务。

在诺曼地登陆行动之所以能够幸存与英勇无关，一切都是机运。这个现代历史最出名的关键时刻，全都取决于非凡战术与预料之外的因素。它不仅与人力和精良武器有关，更需要施展魔法与天马行空的发明—例如会游泳的战车、人数足以遮蔽天空的伞兵、善用信鸽传递机密的间谍。这场攸关数千名美军性命的战役完全仰赖正确的天气预测或是降落伞带扣。本节目将首度沿用全新的科学研究，详实剖析这场战役的生存机率。两千名伞兵在面积九平方哩的天空面对34万5千发子弹攻击，存活率是四分之一，但有一半伞兵活了下来。他们是如何做到的？只吃一条巧克力的军人和当天早餐吃得饱足的同袍又是谁更有存活机会？特别节目将利用精辟剖析与惊心动魄的画面，生动的戏剧情节，为观众展现精采的英雄故事。

带领观众深入了解飓风卡崔娜，为墨西哥湾沿岸地区的人口、经济与地形所带来的重创。 　　飓风威力果真愈演愈烈？卡崔娜又是如何形成？节目将探索飓风卡崔娜的生命周期,并以特殊的角度，带您认识美国史上死伤最多、损失最惨重的天灾。节目中还将穿插现场报导，并访问美国联邦急难管理总署（FEMA）在内的联邦与州政府官员，以及路易斯安那州、密西西比州与佛罗里达州的生还者。心力交瘁的他们如今极需水、食物与医药等救援物资。 　　节目将从2005年8月29日的凌晨时分开始记录，当时迈阿密国家飓风中心的科学家设法追踪风暴路径，预测飓风的登陆时间与地点。当卡崔娜横扫沿岸，科学家记述了罕见5级飓风背后的自然因素，以及卡崔娜特别惊人致命的原因。节目焦点放在「风暴潮」的现象，还有当风暴仍在几百哩外的海上，一项测量飓风破坏潜力的先进科技，间接促使了有关当局发出史无前例的疏散命令，及时拯救几千条人命。 　　除了记录飓风卡崔娜在墨西哥湾的破坏路径，节目中还将解释，何以纽奥良并未直接遭受飓风袭击，但该市的地形却使得它受创极深。墨西哥湾沿岸大部分地区如今因为飓风卡崔娜的摧残而陷入瘫痪，形成美国史上最严重的天灾之一，布希总统在飞越该区视察后，警告复原工作恐将耗时多年。 　　《夺命飓风：剖析卡崔娜》也将从历史角度探究，何以许多科学家认为我们正进入飓风活跃期，像卡崔娜这样的强烈风暴日后将越来越常见。

Two parallel stories of Japanese and American WWII enemies play out on the island where they fought 60 years prior. They meet face-to-face for the first time and their adventures take them into the jungle where remnants of their fighting still remain untouched.

Join Ryan again in Season #3 on his most recent Extreme Treks series. Extreme Treks is part adventure, part exploration and part education. The best way to understand and respect the world around us is to put yourself right in the path of Mother Nature. Episodes: Russia, Iceland, Laos, Papua New Guinea, Bolivia, Argentina, Jordan and Uganda.

Ryan's human-powered adventures are always inspiring as he proves that anyone can get out and explore the great unknown. Extreme Treks is part adventure, part exploration and part education. The best way to understand and respect the world around us is to put yourself right in the path of Mother Nature. 　　Episodes: Tanzania, Morocco, China, USA, Peru, Nepal, Italy and Oman.

艾丽斯罗伯兹教授解释四分之三的民众是如何在不知不觉中将导致食物中毒的曲状杆菌由超市中带回家！

在本集节目，邀请观众跳入水中，抵抗猛烈攻击铁笼的大白鲨。体验雪地电单车手最恐惧的恶梦IC就是势不可挡的雪崩。最后还要面对致命响尾蛇。人生际遇变幻莫测，面临生死关头，你知道如何应对吗?

印度空军除了对抗叛军，要与温度、地形、前所未见的极端气象和稀薄的空气搏斗。本片带观众深入印度空军幕后，看他们如何面对最困难的情况，在充满挑战的环境中执行任务，并介绍他们最先进的设施和冒生命危险保卫国家的空军。