1第 1 集
我的名字叫尼基塔。标题人物在开场白中对观众说，六年前，我被政府的一个秘密机构带出监狱，他们将我训练成刺客。三年前，我逃走了。从那以后，他们一直在追杀我。我是第一个逃出来的人，但我敢保证，我绝不会是最后一个。Alex，一个来自底特律的年轻姑娘，将面临与尼基塔相同的命运。Alex参与了一起抢劫，但是行动出现了意外当Alex醒来时，发现身边站着一个头发乱蓬蓬但是穿着一身西装的年轻男人。他自称Michael，是联邦政府的秘密雇员。Michael告诉Alex他们伪造了死亡，以前的生活已经结束了。
2第 2 集
Percy and Michael take their latest assignment, a Slavic leader wanted for war crimes, into protective custody. Nikita learns of their hideout and attempts to thwart their plan, but a mysterious group of mercenaries in search of nuclear material beats her to the task. Alex is activated earlier than expected for a special assignment that throws her into the crossfire of bullets. A flashback reveals a pivotal moment in Nikita's life.
3第 3 集
自由记者Jill Morelli从一名大学生那里得到情报，称一家排名世界五百强的航空公司利用民航客机从哥伦比亚偷运毒品到美国。飞机不幸坠毁，他们派人迅速将毒品转移，然而这一切让一个躲在暗处的大学生摄录了下来。这名大学生愿意将手里的录像交给Jill，但Jill必须为此支付5万美元。航空公司得知此事后，立刻请求组织出面封口。组织派人暗杀了与Jill接头的杂志社总编，诬陷Jill为杀人凶手，并将其绑架。Alex发现这一情况后及时通报Nikita，Nikita出手解救了Jill。为了揭发这一阴谋，Nikita鼓励Jill继续与那名大学生接头，并将她得到的录像上传到互联网上。然而组织也找到了那名大学生的住处，派人上门暗杀。Jill主动向闻讯赶来的警察投降，组织的人眼睁睁看着Jill被警察带走却又无可奈何。另一方面，Michael与Nikita再次交手，但他们都不想置对方于死地。与此同时，Percy和Amanda发现了Nikita藏在Birkhoff牙齿内的微型窃听器。少了这道屏障，Alex今后向外发送情报更加困难了。但Alex也逐渐赢得了Michael的信任--她假意帮助Michael追查到了Jill和Nikita的下落。Jill向警方揭发了航空公司的秘密，警方逮捕了这家公司的CEO。组织见无力继续控制局势，只有承认任务失败。Nikita再次找到Jill，称今后如有需要可能会找她帮忙。
4第 4 集
尼基塔开始深入调查过去某次她假扮为一个颇有影响力的政府官员的保姆事件，准备为他的死亡伸张正义。在这期间，迈克尔参与了尼基塔的救援行动，并开始怀疑珀西的的动机。而在基地里，基本训练期间亚历克斯的惊恐症发作，这提示了阿曼达使其帮助她战胜了幽闭恐惧症。
5第 5 集
组织特工Owen在一起银行劫案中逃脱并成为通缉犯，组织的秘密面临全面曝光的危险。Percy决定亲自搜寻Owen的下落，但Michael怀疑他另有企图。Nikita和Owen发生激战，后来Percy亦加入战团。Alex偷偷溜进Percy的办公室给Nikita发警告信息，却被Thom逮了个正着。Thom并没有告发Alex，而是对她表达了爱意。
6第 6 集
A bus filled with Division recruits is attacked by terrorists who kidnap Alex and Thom, both of whom are unaware that this is a test by Division. Percy, Michael and Amanda watch as Alex is tortured. Alex breaks free and contacts Nikita for help. Meanwhile, Nikita has earned Owen's trust and he reveals some devastating news to Nikita about her fiancé.
7第 7 集
Alex informs Nikita that one of the recruits has been activated to carry out a suicide mission.
8第 8 集
Division sends Thom to eliminate Anna, a woman who was having a secret affair with a U.S. Senator. Division agrees to cover up any trace of the affair as long as the Senator agrees to help pass a bill that will continue to fund the agency. Nikita, with Alex's help, attempts to reach out to Anna's parents, but the conversation doesn't go as she expected.
9第 9 集
Nikita and Michael temporarily team-up to kill a terrorist who murdered Michael’s family many years ago. When Percy learns this information, he sends Division agents to kill Nikita, who ultimately compromises the mission, leading to Michael’s capture by the terrorist group. Alex is caught going through medical files inside Division so she creates a lie that involves Jaden and almost blows her cover.
10第 10 集
Owen leaks secret information from Division’s black boxes to the media, revealing that the U.S. Government was responsible for an assassination in Chile. As a result, Percy frames a C.I.A. agent, Ryan for the crime. Nikita and Owen go to Chile to rescue Ryan from mercenaries and in doing so end up getting captured. Nikita reveals the secrets of Division to Ryan in an effort to save all of their lives. Back inside Division, Alex spies on Percy and Birkhoff and witnesses a side to Percy she has never seen before.