Complete story — includes the ending
Tom has trouble focusing on the hunt for Richard Tyler because of dreams he's been having about the future. Richard, in hiding with Isabelle, is visited by his wife, Lily, who has been dead for over a year. Meanwhile, Jordan Collier's movement is threatened when Shawn announces that he is working on a test with Kevin Burkhoff that would tell people whether or not they would die if they took a shot of promicin.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of The 4400 episodes. HTML formatting and reference markers removed. · Content license