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末世
故事讲述的是不远的未来发生的诡异怪事，全世界所有形式的能量都神秘消失。这使得世界大乱，人类回到“无电”时代。所有的现代科技都成了摆设，它们纷纷神秘的“罢工”，包括电脑、飞机、汽车、手机、甚至是电灯在内的所有东西都不能正常运作。这迫使一群幸存者不得不通过自己的双手来谋求生存并四处寻找他们的亲人和爱人。剧集描述了主角一行人与民兵组织的对抗之旅，一家人在电力消失之后因各种原因失散，父亲被射杀，母亲作为电力消失及知道如何恢复的知情人被扣留，而为了救回落入民兵组织手中的母亲和之后被抓的弟弟，女主角与他的叔叔Miles Matheson，展开了与民兵组织的对抗。而Miles Matheson，居然是组织的创始人之一............
一个家庭在没有电力的美国景观中努力重聚：一个空荡的城市、地方民兵和英雄自由战士的世界，在这里，每一件科技产品——电脑、飞机、汽车、电话，甚至灯——都神秘地永远失效了。
为了营救丹尼，迈尔斯知道他和伙伴们将需要帮助。因此，他们开始寻找诺拉，一位与民兵作战的反叛战士。与此同时，亚伦向玛吉倾诉，而丹尼则见证了内维尔上尉的能力。
诺拉带着迈尔斯和查理逃离民兵，回到反叛者营地。与此同时，亚伦和玛姬寻找格蕾丝，而丹尼则与内维尔上尉的一名手下对峙。
查理和诺拉从民兵手中救出迈尔斯后，他们启程去见亚伦和玛吉。每时每刻追踪迈尔斯和查理的是内特。当帮派重新聚集并继续他们的旅程时，无法预见的挑战在等待着他们。
As the gang nears Neville and his men, their hopes of finding Danny grow until a shocking discovery threatens to impede their efforts. Meanwhile, orders from Monroe have upped the value of Danny's life and Nora connects with a fellow Rebel.
In order to save Nora from her injury, Miles leads the gang on a detour to visit an old acquaintance of his for medical support, but they quickly find themselves in unfriendly territory. Aaron recalls his meek history as he looks back at his pre/post-blackout life, and Neville delivers Danny to Monroe.
When Charlie meets a boy who's suffered a plight similar to her own, she relates and longs to help him and his young friends. First, she must convince Miles. Meanwhile, Rachel grows weary of General Monroe as she meets someone from her past.
When Nora encounters a close relative, she must make a difficult choice between family and a promise. Meanwhile, one of the most ruthless members of the Militia is tracking Miles, Charlie and the gang and General Monroe hands Captain Neville a stern warning.
Miles and the gang are bound for Monroe’s lair – Independence Hall, but their efforts are impeded when they begin to have difficulty separating fantasy from reality. Meanwhile, Monroe starts to grow suspicious of Rachel.
In the gang's quest to rescue Danny, the time has come for Miles and Monroe to meet face to face. Meanwhile, on the verge of reuniting with her brother, Charlie is conflicted by a shocking discovery and Rachel tests Monroe's patience.
Miles leads the rebel squad out of Philadelphia and away from Monroe’s helicopters and machine guns. Meanwhile, a guilt-ridden Rachel tries to redeem herself by providing power to the rebels, but once again must leave her children, Charlie and Danny, behind. As if there wasn’t enough heat, romantic sparks ignite between Miles and Nora.
A final act of heroism by one of their own saves the lives of Charlie and the gang, but the loss devastates everyone and they must carry on with heavy hearts but increased resolve. Miles sets out on a mission with Nora to recruit his former Militia comrade, Jim Hudson and enlist his savage killing skills. Meanwhile, Rachel looks for a power source and a way back into the heart of her daughter Charlie. Rachel also attempts to elude the grip of Randall Flynn, her ruthless former boss and ally of Monroe.
Neville faces danger and hard choices as Monroe doubts his loyalty, he disowns his son Jason and gets captured by Miles. Rachel and Charlie begin slowly patching their relationship only to be pulled apart again as Rachel suddenly embarks on a quest to restore the power and her self-respect. She must make a dangerous journey to the mysterious Tower as it holds her only chance at redemption.
Paranoia strikes Monroe deeply as Neville disappears and Neville’s son Jason makes a big decision. Meanwhile, the familial bond between Miles and Charlie grows stronger. Elsewhere, Miles experiences romantic attraction with both Rachel and Nora. Rachel sets off on her dangerous quest to infiltrate the Tower and restore power to the world before Monroe can ignite a nuclear device.
When the past catches up with Miles and Monroe in the form of mutual heartthrob, Emma all hell breaks loose for them physically and emotionally. Charlie and Nora are the ones who rescue Miles this time. Meanwhile Aaron’s life is turned inside out while accompanying Rachel on her tenacious trek to the mysterious Tower where she plans to restore the power.
Miles and Tom Neville find themselves fighting for the same cause but Miles still doesn’t trust him. Charlie, Jason and Nora attempt to pull off a daring river rescue of Dr. Stephen Camp to keep deadly anthrax out of the hands of Monroe. Meanwhile Rachel and Aaron are captured and threatened by Militia forces.
Romantic connections heat up between two couples -- Miles and Nora and Charlie and Jason -- but disastrous drone strikes from the Militia threaten them all. An assassination attempt on Monroe heightens his paranoia and Georgia Federation President Foster contemplates surrender. Meanwhile, Rachel and Aaron push through the Plains Nation into Colorado.
A captive Nora is tortured and left for dead. Monroe learns of Rachael’s attempt to reach the Tower but is unaware of her deadly plan for him. Meanwhile, Miles is desperate to find out how so many of his close associates are being brutally murdered. Later, Miles, Charlie, Neville, Jason, Hudson and Sanborn struggle to make it out of the Plains Nation to join Rachel and save her from what they believe to be certain death.
Rachel and Monroe battle with more than wits. Meanwhile, Miles, Charlie, Nora and Aaron get inside the Tower but Tom Neville and son Jason get shut out. Miles and Monroe once again face-off, this time even more lethally.
Life-threatening dangers abound on all sides as the Rebels infiltrate the Tower. Miles' leadership abilities and character are sorely tested as well as his feelings for Rachel and Nora. Aaron's genius comes in handy while Tom Neville and Randall Flynn bring new meaning to the dark side.
