As 11.22.63 nears, Jake desperately tries to regain his memories of what is fated to happen so that he can stop it. Meanwhile, the Yellow Card Man pays Jake a visit.
Jake tries to fight history by learning who helped Lee plan the JFK assassination. However, complications arise when Jake discovers that Bill has been seeing Marina, and that the Yellow Card Man is in 1963.moreless
The mystery surrounding Lee Harvey Oswald deepens as George suggests that the ex-Marine meet with his "friends". Meanwhile, Bill and Marina grow closer, and Sadie confesses her secret shame to Jake.
A small-town English teacher is shown a portal through time to 1960... and asked to stop Lee Harvey Oswald from assassinating John F. Kennedy in 1963.
Sean and Kim get themselves into trouble on patrol, with no back up and things looking bleak will anyone notice they are missing in time to save them? Meanwhile the members of intelligence undergo some unwanted training.moreless
Following the death of a 10-year old girl the intelligence unit have one option to gain access to their suspect, go on the inside. Ruzek and Atwater act as inmates to work the case from the inside. Outside prison, Voight and Olinsky follow-up on a good lead to answer some questions about the shooting. Meanwhile, Burgess and Roman show three boys around district thinking they are part of the Police Explorers program, only to realize that's not quite the case.moreless
Dr. Grace Devlin has to take care of a family that suffered serious injuries in a car crash. Meanwhile Constantine orders Grace to help a drunk driver who caused a deadly accident and fled the scene, Nate makes a weighty move and someone is admitted to a psychiatric ward after a bar fight.moreless