Neil Wilson, now looking a little less sickly, goes to a grocery store to stock up on healthy foods. While paying for his items, he becomes violently ill and runs out the door. Neil goes home and begins searching for another childhood schoolmate named Lloyd Becker.

When Becker turns up dead, Walter suggests that Neil may be infecting others with cancer in an effort to slow the progression of his own illness. Astrid finds three more similar cases, and Olivia discovers a commonality among them: all of the victims were Cortexiphan children.

Olivia goes to Massive Dynamic to see if Nina Sharp has a complete list of the Cortexiphan children's names, but she comes up empty handed. She tells Nina of her intention to tell Peter the truth, and Nina calls her bluff.

Meanwhile, Neil Wilson visits Nick Lane's aunt, and she unwittingly mentions that Nick (from the episode "Bad Dreams") was recently in contact with another Jacksonville schoolmate... Olivia.

At her home, Olivia figures out that Neil Wilson's real name is James Heath and that he was a Cortexiphan child as well! She calls Broyles and explains that Heath's sister became the first victim to die after visiting Heath in the hospital when they were younger.

Olivia rushes out the door to investigate further, but she is confronted by Heath. A fight ensues and Olivia ultimately prevails. Heath breaks down and confesses that the whole ordeal began as an accident when a mysterious man came to his hospital bed and attempted to activate his abilities.

Heath is whisked away to a top secret facility and placed under a drug-induced coma. Broyles and Nina Sharp meet at the facility to decide that they must track down all of the other Cortexiphan subjects before they fall into the wrong hands.

Olivia goes to Walter's house and tells him she has decided not to say anything to Peter about his past. Walter thanks her, but explains that he wants to atone for his previous mistakes and that he will begin doing so by telling Peter the truth.