故事讲述近百年来有不少人被外星人TAKEN。在2004年7月的一天，美国国家安全局发现一颗慧星高速的飞向地球，危及地球人安全。全球各国(包括中国)都向该慧星发射导弹欲摧毁之，结果没有任何作用。最后慧星在上图中那个湖边降落，一阵迷雾散开之后，湖边出现4400个不同年代被TAKEN的人，而且他们都完好的保持着各自年代里被TAKEN时的原样。最终当这4400人走向社会时，却发现他们有着超乎常人的特异功能。这些人曾去了哪儿？又怎么回来的？为什么会有特异功能？为什么是4400个人？他们最终会给地球带来怎么的变化？或者这是一个外星人的实验？或者是来自未来的拯救行动？
4400失踪人口 (季节 4)
The Wrath of Graham 7.2
播出日期: 2007-06-17
运行时间: 42 min
概述: A high school student develops an ability after injecting promicin. Tom visits Isabelle in jail, while Diana searches for her missing sister. Following the advice of a young woman, named Cassie, Kyle is able to wake Shawn from his coma. Jordan Collier's conscience gets to him. Meanwhile, NTAC gets a new director.
Fear Itself 7.2
播出日期: 2007-06-24
运行时间: 42 min
概述: Tom and Diana search for someone who has the ability to make people's worst fears come true. Danny seeks Shawn's help to find a promicin shot. Meanwhile, Cassie leads Kyle to a book that contains a prophecy about Jordan Collier.
Audrey Parker's Come and Gone 7.5
播出日期: 2007-07-01
运行时间: 42 min
概述: Audrey Parker, an elderly woman, takes promicin and develops the ability to astral project. Meanwhile, Shawn decides to start publicly healing people again despite threats from the government to shut him down. And Ben and Maia return to Seattle to visit Diana.
The Truth and Nothing But the Truth 7.3
播出日期: 2007-07-08
运行时间: 42 min
概述: Diana locates her sister, April, who took promicin and developed an ability that puts her life in jeopardy.
Try The Pie 7.7
播出日期: 2007-07-15
运行时间: 42 min
概述: Tom tracks Jordan to a small town, where he meets a woman who can relieve people's stress by talking to them. Meanwhile, Marco and Diana have a nice talk. Maia's visions are giving her nightmares.
The Marked 7.5
播出日期: 2007-07-22
运行时间: 42 min
概述: Jordan wants Shawn to rejoin the movement. Meanwhile, a 4400 with an amazing ability disappears.
Till We Have Built Jerusalem 7.2
播出日期: 2007-07-29
运行时间: 42 min
概述: Jordan Collier's movement takes a huge step forward when his followers settle in the heart of Seattle.
No Exit 7.5
播出日期: 2007-08-05
运行时间: 42 min
概述: Tom, Diana, Jordan, Shawn, Kyle, Isabelle, Maia, Meghan, Marco, PJ and Brady all wake up inside NTAC without any memory of how they got there.
Daddy's Little Girl 7.5
播出日期: 2007-08-12
运行时间: 42 min
概述: Richard surprises Isabelle when he shows up in Promise City but the happy reunion takes a turn when Richard kidnaps her in hopes to start a new life with his daughter.
One of Us 7.2
播出日期: 2007-08-19
运行时间: 42 min
概述: Tom has trouble focusing on the hunt for Richard Tyler because of dreams he's having about the future.
Ghost in the Machine 7.2
播出日期: 2007-08-26
运行时间: 42 min
概述: Tom and Diana must race to find the source of a computer virus that could bring down Ubient software, one of the world's largest software companies that is run by suspected member of the marked, Drew Imroth. Meanwhile, Maia visits Promise City where she receives an unexpected birthday surprise: a visit from her birth parents.
Tiny Machines 7.2
播出日期: 2007-09-09
运行时间: 42 min
概述: Meghan and Diana learn how to remove the entity from Tom, but the procedure is dangerous. Meanwhile, Shawn finds help in his attempt to rescue Kevin from Promise City; and Jordan is betrayed by someone close.
The Great Leap Forward 7.7
播出日期: 2007-09-16
运行时间: 42 min
概述: Paramedics try to resuscitate Susan Farrell. They believe that she took promicin and lost the 50/50 lotto that comes with it. Danny is certain that she did not take the shot. After arriving at the hospital with the paramedics, things get complicated as everyone around Danny start to die. Garrity and another NTAC agent are sent to the hospital to assess the situation.
季
集 5
集 13
集 13
集 13
集 1