Shawn and Isabelle embrace and kiss in Shawn's bed when Shawn receives a knock on the door. Answering it he finds Richard standing there. Richard tells Shawn that before his wife Lily died she asked Richard to take over her job at the foundation. Richard has been trying to decipher the financial reports, and has uncovered significant unaccounted-for cash payments. He asks Shawn if he remembers what the payments were for. Shawn replies that he does not. After Richard leaves and Shawn shuts the door, Isabelle suggests that Maybe we should tell him. Shawn replies ''No, no, don't think so.. We just gotta be more careful.
Maia and her mother Diana, preparing to go out on a day trip, pack their items into their car and converse about Maia's friend Amy. Maia realizes she forgot her jumper and goes back upstairs to retrieve it, and as she walks away, she comes to a standstill with a shocked face. You're gonna forget me, Maia tells her mother. Maia says she saw it in her visions, and that it is not Diana's fault. She then heads back into the apartment. After waiting a short period and becoming impatient, Diana returns upstairs to find a woman with Maia: Sarah Rutledge, Maia's sister.
Maia and Sarah reminisce about the past and how Maia's parents missed her. Diana asks Maia to give Sarah and her a moment and the adults speak in Diana's kitchen. Diana explains to Sarah how she had spent years trying to track down Maia's sister. Sarah explains how she just wants to know Maia.
At a hospital, several ill children and reporters surround Richard. He explains that they have not tried a healing so large before, but they believe they will all be happy with the results. Richard explains that his late wife, Lily, started the foundation and he is proud to be carrying on her work. Richard introduces Shawn, who tells them that the healing process will not hurt. He asks the children that when they leave the hospital - and they will be healed they tell anybody who asks that a 4400 healed them. Shawn asks the children, "Ready to get started?", but a man dressed in a nurse's uniform shouts Traitor! Traitor to your own kind! and throws a cup of red paint over Shawn.
Maia plays a game of badminton with her friend and fellow 4400, Amy Paspalis. Shortly into the game Sarah appears and in a soft raised voice utters "Maia." At NTAC Tom rushes to Diana's desk and explains that the DNA test has returned negative, Sarah is not Maia's sister.
At NTAC Marco reviews Maia's journal, questioning her thoughts and a specific doodle. Marco reveals that her diary also discloses how he will die; "it's quite cool." Reviewing a certain page Marco reads Mommy's coming to pick me up from Miss Paspalis' house but I'm already gone. I'm in a circle with Tyler Downing. Diana visits the Downing house with Tom and questions Tyler, but he knows nothing of Maia's whereabouts.
Maia listens to Billie Holiday music at Sarah's home, in her new bedroom, an exact replica of her bedroom before her abduction. Maia shouts to Sarah but receives no reply. Leaving the room she heads down the hallway and attempts to open the door - it is, however, locked. Up the hallway a door opens and a young girl, Lindsay, leaves the room. She explains that Sarah will not come, and that Maia is part of Sarah's collection, with several other children. The door at the end of the hall opens, and the children rush back to their rooms. Maia leaves her door slightly ajar, and sees Sarah and an old man walking up the hallway with Tyler Downing.
Standing at their doors the children tell one another their abilities, and what they can do, Lindsay states she is going to try to find a way to get them out of there, but they all rush and shut their doors when the door at the bottom of the hallway begins to be unlocked. A man walks into Maia's room and puts down some green clothing, while outside Lindsay begins screaming Let me go! and is pulled through the bottom door.
Lindsay is returned to her room with a dazed thoughtless appearance. Maia goes to her door and opens it, standing in front of Lindsay, who asks Who are you? The landing door opens and Sarah asks Maia Do you want to come with me sweetie? Maia is pulled away by the non-speaking man, screaming, when she refuses.
In the kitchen, Sarah offers Maia a dusky white drink, telling Maia that it will make her feel better. Maia tearfully refuses - No but begins to reach for the glass after looking at the quiet man. However, the lights begin to flicker, and Maia states they're doing it, they're helping. The quiet man collapses and Sarah's body begins to liquefy. Outside, Diana shouts to Tom to stop the car. The butterflies on the gate to a house are in Maia's diary. Tom and Diana break into the house and find it empty except for a real estate agent showing the house. Maia escapes through a door into a dark room with several dimly lit compartments (seen before in the episode Life Interrupted). Sarah explains that they had to bring her here, to the future, because they need her help.
At the 4400 Center Shawn signs equal power over to Richard. They shake hands; Richard states it is an honor. Matthew congratulates Isabelle on a job well done, awarding her with a present, Isabelle states to him she used to be scared of him, but she now doesn't think he has any power over her. She raises her hand, and Matthew is forced into a choking upward position. Isabelle allows him to drop to the ground, deciding that she did not think Matthew had control of her, and that she will do her own shopping now.
Sarah explains to Maia they are ready to begin, and that Maia and the other children are special. They are sending Maia back earlier, much earlier, because they had calculated wrong last time and they have to try again as there is no other hope for humanity. Maia tells her she does not care, she wants to stay with her mom. Sarah says she can make the pain go away, they will make her forget her mother, and everyone around her will forget her as well.
All hope we have rests with you.
A bright light flashes down on Maia and she disappears. Scenes of the current time are shown, with all references to Maia vanishing from it.