In 1993, Jeanette bumps into popular Kate Wallis and her boyfriend, Jamie Henson, at the mall where Jeanette and her friends Mallory and Vince create a bucket list of daring activities. While playing hide-and-seek in a house her father recently sold, Jeanette meets Skylin High's new vice principal, Martin Harris, the house's new owner.

In 1994, Kate has been missing for a year, and the now-popular Jeanette celebrates her birthday with her now-boyfriend Jamie and Kate's former friends Renée and Tenille. A jealous Mallory confronts Jeanette for taking over Kate's life, which Jeanette dismisses. When it is announced that Kate has been found alive, Jeanette runs to see Jamie, who punches her in the face, asking her what she did to Kate.

In 1993, Jeanette, Mallory, and Vince meet Jamie's best friend Ben, who offers advice on a prank the trio are planning. Kate believes her stepfather Rod is cheating on her mother, Joy. She tells Joy and attempts to find proof but discovers Rod is only planning a surprise cruise. Kate apologizes to Joy, who berates Kate for making accusations and being an embarrassment. Upset, Kate leaves the party and gets drunk. The gardener Scott returns Kate home, where she discovers Joy and Scott are having an affair. Distressed, Kate sneaks out again and is found by Martin Harris.

In 1994, Jamie – who has reconciled with Kate – and Rod are worried that Kate refuses to talk to the police or go to therapy. Jamie secretly meets with Jeanette, who swears she is innocent, and the two kiss as Kate secretly watches. Angry, Kate goes to the police and offers Jeanette's necklace as proof of her accusation.

In 1993, Mallory is furious when Jeanette flushes the stash of joints that Mallory brought. Cindy suggests Jeanette distance herself from Mallory, recalling her own high school popularity, but Jeanette instead sneaks over to Martin Harris' house to steal a yearbook as an apology gift for Mallory.

In 1994, Greg and Derek furiously confront Jamie for punching Jeanette. Jeanette is questioned by the police and is shocked when they produce her necklace. Cindy begins to doubt Jeanette. Vince meets up with Ben, whom he is secretly dating. Jamie asks Jeanette to keep their kiss a secret and asks how she knew Kate went missing before everyone else did.

In 1993, Kate attempts to bond with her step-sister Ash as the family prepares for their annual hunting trip. Kate tries to confide in Ash about Joy's affair, but Ash brushes her off. Kate abandons a date with Jamie in favor of stargazing with Martin.

In 1994, Kate attends therapy where she meets Mallory; the two bond over their mutual hatred of Jeanette. The police tell Kate and Joy that they do not have a solid case against Jeanette. Ash attempts to bond with Kate, but Kate blames Ash for driving her to confide in Martin. After Derek jokes that Ash should assume an alter ego to reach Kate, Ash joins Kate's abduction victims chatroom under an alias.

In 1993, Jeanette attends a date at the carnival with dorky out-of-towner Gideon but abandons him after people make fun of them. Martin later scolds her. Kate and Martin continue to bond, but he steals her scrunchie when she leaves. When Jeanette notices, she offers to return it to Kate and takes it.

In 1994, Kate confronts Jamie about his kiss with Jeanette, but he accuses her of making it up. When he attempts to gaslight her by blaming her post-traumatic shaky memory, she breaks up with him. Jeanette and Derek attend the carnival in hopes of talking things out with Kate while Cindy starts to descend into alcoholism. Greg meets Angela at a video store. After Jeanette chases Kate and Mallory into a mirror maze, Derek tells her she should go back to being her old self, but Jeanette says she cannot.

In 1993, Jeanette, Mallory, and Vince shoplift as Tenille's mother Tanya flirts with Martin. Jeanette covers for Vince and goes to "mall jail", where she bonds with Jamie. Later, Jeanette sneaks into Martin's house. When Martin and Tanya return, Jeanette hides in a closet. Jeanette witnesses Tanya confiding in Martin in an attempt to seduce him. Tanya discovers Jeanette in the closet and allows Jeanette to leave without telling Martin.

In 1994, Greg and Cindy argue as Derek prepares to go to college. Cindy snoops around Jeanette's room and finds Martin's house key. When Greg and Derek both belittle her concerns, Cindy leaves to stay with her sister. Later, Jeanette catches a near-kiss between Vince and Ben at the video store while Tanya gives an interview where she paints Martin, instead of herself, as the aggressor while recounting their date. Greg, to his disappointment, confirms the key Cindy found in Jeanette's room is Martin's house key.

This episode's plot summary may be too long or excessively detailed. (January 2022)

In 1993, Jamie tells Rod he got Kate a promise ring. After he gives it to her, Kate is uneasy. Jamie gets drunk at the mall with Kate and her friends, and the two accept a ride from Martin. When Kate arrives to her birthday dinner celebration late, Joy tells her she told everyone to go home and is furious at Kate. Kate reveals Joy's affair to Rod and Joy, lying to cover her tracks, slaps Kate. Devastated, Kate runs away to Martin's house.

In 1994, Kate is unable to eat or sleep. After inviting Mallory over for the first time and disclosing this to her, the two get high along with Ash. Joy pressures a reluctant Kate to go on a talk show to which she later agrees after a random girl claims Martin had once tried to abduct her too.

In 1993, Vince and Jeanette abandon their posts to keep watch while Mallory plays a prank video school-wide. Jeanette overhears a meeting between Martin and Joy where Joy discloses that Kate never came home the previous night. After Mallory is caught and her video confiscated by Martin, she angrily confronts Jeanette, who breaks off their friendship. Martin destroys the confiscated tape because it shows Kate in his house window momentarily.

In 1994, Greg questions Jeanette about the key to Martin's house and forces her to give it to the police. Jeanette tries to pull away from Vince in order to protect his secret relationship with Ben and soon decides to drop out of school to avoid scrutiny. A drunken Jamie is arrested after accidentally crashing his car while driving Ben, leaving Ben with a serious arm injury.

In 1993, Martin leaves Kate at his house where she stays the day instead of going to school. After Kate is designated a missing person, Martin worries and tells her to go, but the two procrastinate instead by playing Never Have I Ever. After twenty-one days together, the two have started a romantic relationship under the mutual agreement Kate must not leave his house. Halloween and Thanksgiving pass, and on Christmas Eve Kate has fallen into a depressive state as she misses the outside world. That night, Jeanette sneaks into Martin's house while he is out shopping and steals a snow globe (the one in Mallory's possession in 1995) but accidentally drops her necklace, which Kate picks up and keeps secret from Martin. Kate later sneaks out to spy on her parents and leaves with the assumption they are enjoying their lives without her. The following night, Kate attempts to leave for good but Martin locks her in the basement to protect his reputation.

In 1993, Mallory confronts Jeanette at her home over stealing Martin's snow globe. Jeaneatte gives her the snow globe and kicks her out of the house.

In 1994, Jeanette again breaks into Martin's house and hears Kate calling for help from the basement but ignores her pleas. Kate does not realize Jeanette heard her. After her rescue, Kate denounces Jeanette on The Marsha Bailey Show.