Season 4
13 episodes · Jun 17, 2007
Season four continues the incredible story of the 4400. Old adversaries become new allies, and family ties are strained to the breaking point in the battle over promicin. Can the 4400 lead mankind into a new world, or will the forces working against them spell the end for their kind?
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S4E1The Wrath of Graham
Jun 17, 200742mA 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.
S4E2Fear Itself
Jun 24, 200742mTom 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.
S4E3Audrey Parker's Come and Gone
Jul 1, 200742mAudrey 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.
S4E4The Truth and Nothing But the Truth
Jul 8, 200742mDiana locates her sister, April, who took promicin and developed an ability that puts her life in jeopardy.
S4E5Try The Pie
Jul 15, 200742mTom 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.
S4E6The Marked
Jul 22, 200742mJordan wants Shawn to rejoin the movement. Meanwhile, a 4400 with an amazing ability disappears.
S4E7Till We Have Built Jerusalem
Jul 29, 200742mJordan Collier's movement takes a huge step forward when his followers settle in the heart of Seattle.
S4E8No Exit
Aug 5, 200742mTom, Diana, Jordan, Shawn, Kyle, Isabelle, Maia, Meghan, Marco, PJ and Brady all wake up inside NTAC without any memory of how they got there.
S4E9Daddy's Little Girl
Aug 12, 200742mRichard 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.
S4E10One of Us
Aug 19, 200742mTom has trouble focusing on the hunt for Richard Tyler because of dreams he's having about the future.
S4E11Ghost in the Machine
Aug 26, 200742mTom 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.
S4E12Tiny Machines
Sep 9, 200742mMeghan 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.
S4E13The Great Leap Forward
Sep 16, 200742mParamedics 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.