While rowing out in the ocean, Mitch rescues an underwater photographer, named Linda, floating on some wreckage. Linda's somewhat disjointed, frantic story about something attacking her in an underwater cave which killed her partner and destroyed her boat is misconstructed by Kay Morgan, an ambitious, publicity seeking newspaper reporter, who creates a media frenzy by starting rumors about a "creature in the bay." Harvey Miller, the new lifeguard and prankster, benefits from the events by selling undersea creature T-shirts. Meanwhile, Shauni rescues a young girl from drowning and soon becomes compelled to rescue the girl, her brother and their mother from the life they live in the slums of South-Central L.A., much to Eddie's chagrin. While Shauni deals with her possessive father who disapproves of her lifeguard job, Mitch also pressures Captain Thorp to ask for funding for new advanced motorboats, called Scarabs, for the team.

　　Mitch Buchannon, Hobie, Eddie and Shauni travel to northern California's rugged gold country, with C.J. as their guide, to investigate the death of Mitch's prospector uncle where they find an old treasure map leading to a valuable gold nugget along a rough river. Back at Baywatch, two new recruits show up for rookie training season who are the wealthy and spoiled teen Matt Brody, and lower class swim champion Summer Quinn who moves to California with her divorced single mother looking to escape from an abusive past.

　　发现一颗巨大的陨石正朝地球方向奔来，并将于十八日内撞上地球时，美国太空总署想出阻止该陨石与地球相撞造成人类毁灭的办法：派人登陆陨石的表面，钻洞贯穿至陨石的地心，放入核弹引爆。但这一切必须要在十八日内完成。　　钻油井工头（布鲁斯•威利斯）被委以重任，而他的下属（本•阿弗莱特）恰也是其女儿（丽芙•泰勒）的男朋友，此次任务能否成功完成，关系到女儿下半辈子的幸福。为此，他和下属接受了太空总署的高强度的训练，以期一夜之间从打井工人变成救世英雄。

　　未来的一天，全世界的能量突然神秘消失，包括手机、电脑、汽车、飞机甚至电灯都神秘消失，人民开始使用那些冷兵器时代的武器（来保护自己。大家生活在由各种民团士兵支配下的小村子中。地球上不再有“政府”，这些民团势力取代了政府的作用。门罗民团组织的上尉Tom要求带Ben走。Ben的儿子Danny企图阻止被抓走，更让Ben被士兵击中。临终前Ben让女儿Charlie（ 崔西·思伯瑞达克斯 Tracy Spiridakos 饰）去芝加哥找他的兄弟Miles（比利·伯克 Billy Burke 饰），唯一可以救回Danny的人。埋葬父亲后，Charlie便踏上了旅程。小镇医生Maggie（安娜·李斯·菲利普斯 Anna Lise Phillips）和学者Aaron（詹克·欧思 Zak Orth 饰）也加入了队伍。Ben临终前曾将一个小盒子委托给他，里面可能包含了关于电力消失事件背后的秘密。一路上，他们又遇到了出色的射手Nate。　　一队人向着芝加哥出发，但这一切，仅仅是故事的开始……

　　故事描述不远的未来发生诡异的怪事，全世界所有形式的能量都神秘消失，所有的现代科技都成了摆设，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。