Episode #1: "The Rabbit Hole" - Feb. 15, 2016
Cafe owner Al Templeton reveals a time portal to October 1960 in his closet to his friend, English teacher Jake Epping. Dying of cancer, Al asks Jake to travel back to the 1960s and prevent the assassination of John F. Kennedy. Al explains his own past attempts and mistakes to Jake to stop it, noting his apparent onset of cancer was from spending extended time in the past. Armed with Al's research, Jake goes to 1960 and surveils a Kennedy intimate, believed to be Lee Harvey Oswald's handler. He finds that the past is "pushing back" as accidents and incidents make it difficult for him to achieve his goals. He returns to his lodgings to find them burning, Al's notes nearly all destroyed, and the landlady's son dead. He decides to give up, and "return to Maine", but stops to try and prevent a multiple murder he had heard about in the present.
#2 "The Kill Floor" - February 22, 2016
Jake starts a new life in 1960 and begins his investigation into the Kennedy assassination. He tests his ability to alter the past by attempting to prevent the murder of the family of one of his future students by their father, an abusive alcoholic who had previously killed the sister (and her baby) of Bill Turcotte, who discovers Jake is from the future.
#3 "Other Voices, Other Rooms" - Feb. 29, 2016
With the help of Bill Turcotte, Jake moves to Fort Worth and finds a job at a school in the nearby town of Jodie, where he forms a connection with a librarian, Sadie Dunhill. Jake and Bill surveil Lee Harvey Oswald, who has just returned from Russia.
#4 "The Eyes of Texas" - March 7, 2016
Oswald practices assembling his sniper rifle and takes the infamous picture with it. Jake and Bill follow Oswald and George to a brothel but things go wrong. Miss Mimi confronts Jake after discovering he's using a fake name, forcing Jake to make up a cover story. Sadie and Jake's relationship is tested by the return of Sadie's abusive ex-husband, Johnny Clayton, who refuses to finalize their divorce. Sadie discovers recordings of Oswald in the basement of Jake's house.
#5 "The Truth" - March 14, 2016
Jake and Bill get ready to discover if Oswald acted alone in shooting General Walker. However, Time intervenes by distracting Bill with an illusion of his sister. Meanwhile, Johnny demands Jake come to Sadie's house where he holds both hostage with a gun after disfiguring her. Eventually, Jake and Sadie blind and then kill Johnny. Later at the hospital Jake decides to reveal to Sadie the whole truth about who he really is and where he's from.
#6 "Happy Birthday, Lee Harvey Oswald"
March 21, 2016
Jake discovers Bill has become intimately involved with Marina and has become Oswald's best friend. Bill reveals to Oswald that his apartment is under surveillance. Fearing Bill will become the second shooter, Jake has him committed. Time begins to push back by threatening Sadie's life during plastic surgery. After finding out that Oswald is acting alone and without CIA backing, Jake decides to kill Oswald. Before he can, he's attacked by his bookie and his thugs leaving him unable to remember anything.
#7 "Soldier Boy" - March 28, 2016
Jake wakes from his coma just days before the assassination date, suffering from amnesia. Sadie tries to help him as he struggles to remember what he needs to do. They visit Bill at the asylum in the hope that he will jog Jake's memory; however, addled by his treatment and Jake's insistence that time travel is real, Bill commits suicide. Jake relies on Sadie's help to recover his memory. Jake has full recall after a visit with Oswald in his house.
#8 "The Day in Question" - April 4, 2016
During the events of November 22, 1963, Jake and Sadie struggle against the past on their way to the final confrontation with Oswald. Jake stops Oswald but during the scuffle, Sadie is killed. Jake travels back to 2016 only to find it has become a wasteland. Through Harry Dunning he learns that after JFK served two terms, George Wallace was elected president. War broke out and although Kennedy founded a series of refugee camps, there is great suffering in the world. Crestfallen Jake travels back to October 1960, thus resetting the timeline, where he immediately meets Sadie again, but decides not to pursue a relationship in order to save her life. In the present Jake travels back to Jodie and finds Sadie in her 80s receiving a prestigious lifetime achievement award for her life's work. Jake shares a dance with her.