在全球性的核战过后，仅存的人类躲入空间站方舟中苟延残喘。为了保存资源，控制人口，任何触犯法律的成年人都会被处以死刑。将近一百年后，空间站氧气即将耗尽，人类面临死神的威胁。为此，包括少女克拉克（Eliza Taylor-Cotter 饰）、总理之子威尔斯（Eli Goree 饰）在内的一百名少年犯被强制送往地球，他们即使危急关头的牺牲品，也是人类最后的希望。顺利抵达地球的年轻人急于摆脱方舟的束缚，克拉克则执意和几名同伴寻找供给，在此期间发现地球还有人类存在。另一方面，方舟内的政治局势波谲云诡，总理遇刺，代理总理凯恩（亨利·伊安·库斯克 Henry Ian Cusick 饰）蠢蠢欲动，人类的命运悬于一线……
编剧: Jason Rothenberg
播出日期: 2014-10-22
运行时间: 43 min
概述: Clarke is still on her own in the white room, frantically attempting to make sense of her bizarre surroundings. Lincoln and Octavia's plan is ruined and an enemy returns.
编剧: Michael Angeli
播出日期: 2014-10-29
运行时间: 43 min
概述: Clarke wants answers from the President. Abby performs emergency surgery. Octavia will do anything to find Lincoln.
编剧: Wade McIntyre
播出日期: 2014-11-05
运行时间: 43 min
概述: After discovering a horrifying project in Mount Weather's medical ward, Clarke joins forces with an unexpected ally.
编剧: Kim Shumway
播出日期: 2014-11-12
运行时间: 41 min
概述: Clarke ends up being betrayed by somebody that she trusted. Bellamy, Finn and Murphy attempt to save a stranger.
编剧: Charles Grant Craig
播出日期: 2014-11-19
运行时间: 43 min
概述: Kane takes part in a mission to make peace with the Grounders. Jasper decides to take part in a risky experiment. Lincoln enters a world of pain and President Dante Wallace issues a warning.
编剧: Kira Snyder
播出日期: 2014-12-03
运行时间: 43 min
概述: Tensions are running high between Clarke and Finn. Raven finds out that Mount Weather is interfering with their communication systems.
编剧: James Thorpe
播出日期: 2014-12-10
运行时间: 43 min
概述: Bellamy is able to get Clarke to agree to accompany him to the drop ship. Dr. Tsing is in charge of a deadly experiment.
编剧: Bruce Miller
播出日期: 2014-12-17
运行时间: 43 min
概述: Clarke comes back to Camp Jaha with some shocking news. Finn has to face the consequences of his actions.
编剧: Dorothy Fortenberry
播出日期: 2015-01-21
运行时间: 43 min
概述: Lexa and Clarke manage to make a deal.The newly created alliance is under threat. Monty comes up with a plan.
编剧: Akela Cooper
播出日期: 2015-01-28
运行时间: 41 min
概述: Lives are left in danger following the arrival of a new threat. Lincoln and Bellamy decide to break into Mount Weather.
编剧: Charles Grant Craig
播出日期: 2015-02-04
运行时间: 41 min
概述: Lincoln and Bellamy's efforts to get into Mount Weather has some brutal consequences.
编剧: Wade McIntyre
播出日期: 2015-02-11
运行时间: 43 min
概述: Clarke is faced with a difficult choice and Raven helps Bellamy navigate Mount Weather as Dr. Tsing begins to harvest the 47, while Jaha and Murphy encounter a stranger on their journey to the City of Light.
编剧: Bruce Miller
播出日期: 2015-02-18
运行时间: 41 min
概述: Clarke begins to question Lexa's leadership decisions and Indra continues to push Octavia. Meanwhile, at Mount Weather, Jasper steps up into the role of leader, and Cage throws Maya into a life threatening situation.
编剧: Kim Shumway
播出日期: 2015-02-25
运行时间: 43 min
概述: Lexa and Clarke get into a heated discussion during battle preparations; Bellamy races against time.
编剧: Wade McIntyre
播出日期: 2015-03-04
运行时间: 43 min
概述: Wick and Raven are faced with a setback. Maya and Jasper witness a terrible act.
编剧: Jason Rothenberg
播出日期: 2015-03-11
运行时间: 42 min
概述: Jaha makes a surprising move. Clarke gets help from an unexpected source. Lincoln seeks revenge.
