Episode 1: The Wrath of Graham
Season Premiere: In the fourth-season opener, the NTAC deals with a new director and a high-school student who developed a special ability after taking promicin. Meanwhile, Tom (Joel Gretsch) visits Isabelle in prison and Diana searches for her sister, who took promicin. SpoilerFix.com
Episode 2: Fear Itself
Tom and Diana look for a person who makes phobias all too real. Meanwhile, Kyle gets another lead from Cassie, this time to a book that contains a prophecy about Collier.
Episode 3: Audrey Parker's Come & Gone
An elderly woman develops the ability to astral project unseen by others, but she is stuck in limbo when her body is murdered, and she must find a way to contact Tom and Diana to help catch her killer. Elsewhere, Shawn decides to start healing people again despite threats. SpoilerFix.com
Episode 4: The Truth & Nothing But The Truth
We finally see April Soukris again after taking promicin and being on the run for four months. Let's say that the woman changed a lot and, of course, has developped a power. April will use her power to help Tom and Diana work a case. SpoilerFix.com
Episode 5: Try the Pie
Shannon Reese, a patient and lovely woman in her 30s, will teach Tom about her neighbors, who all took promicin. Shannon has the ability to remove stress in people's lives by listening to their problems. At the end of their meeting with Shannon, their problems are all turned into a small jewel. Tom doesn't seem to approve much of the fact that this town, Evanston, seems to have given promicin to all its inhabitants. Source: SpoilerFix.com
Episode 6: The Marked
At NTAC, Diana and Tom watch a black and white movie about JFK's assassination. Of course, they have a reason for watching this and that is because 4400 Curtis Peck made the movie. Neal, one of the actors, believes that Peck's movies reflect reality and that is why he was brought back as a 4400... to tell the truth. When interviewing Neal, Tom and Diana are shown a tape Peck made in case something happened to him. In it, the 4400 claims that Jordan Collier and the 4400 are not a threat but that "them" are. While trying to locate Peck, our NTAC duo must try to figure out who is "them." Kyle brings a blindfolded Shawn to an abandoned bunker to meet up with someone. Isabelle, Marco, Brady, P.J., and Meghan also appear. Source: SpoilerFix.com
Episode 7: Till We Have Built Our Jerusalem
Tom and Diana are concerned when a Delta Force team composed of enhanced soldiers is ordered to capture Jordan, dead or alive. Maia has a vision of the team killing Jordan and what follows scares the hell out of her. She tells Diana that she must save Jordan at all cost. Shawn gets in trouble when he gets sued for supposedly having used his healing powers to get sex from the daughter of the woman he healed. Meghan, Kyle, Isabelle, and Collier also appear. Source: SpoilerFix.com
Episode 8: No Exit
A lockdown at NTAC threatens the lives of Tom, Diana, Meghan, Shawn, Kyle, Jordan, Isabelle, Maia, Marco, PJ and Brady when they wakeup inside the building with no recollection of how they got there. They must work together to survive when he building appears to have a mind of its own.
Episode 9: Daddy's Little Girl
Richard kidnaps Isabelle from Collier's Promise City. Richard hopes to start a new life with his daughter. Elsewhere, Tess has taken over a 1950's diner, and Shawn is asked to intervene.
Episode 10: One of Us
The Director of National Intelligence pressures NTAC to pursue Richard and Isabelle. Richard is visited by his dead wife, Lily. Shawn and Kevin Burkhoff announce that they have developed a test that can tell people whether taking promicin will cause their death. Tom has a dream about the future and the 4400.
Episode 11: Ghost in the Machine
A computer virus attacks a large software company owned by a suspected member of The Marked. Maia visits Promise City and receives an unexpected birthday gift.
Episode 12: Tiny Machines
Isabelle works with Tom in order to get close to Jordan. Shawn recruits a small band of promicin positives to break Kevin out of Promise City. Tom and Diana face off in the backroom of a grocery store, and Diana is forced to shoot Tom.
Episode 13: The Great Leap Forward
Danny Farrell's newfound ability to spread promicin leads to several hundred deaths, including his mother. With Seattle in chaos, NTAC is forced to accept Promise City's offer of help. Shawn is faced with a difficult decision when Danny asks him to end his life to stop the spread of promicin.
Contributed By Silver1978