Archie, Betty, Veronica and Jughead prepare for their first day as Riverdale High's newest teachers. Veronica introduces her husband Chad to the group after he shows up unexpectedly in Riverdale. After realizing they are out of funds, Archie and Toni turn to Cheryl for help restarting the football and cheer teams. Finally, Betty, Kevin and Alice follow a lead after learning that Polly may be in trouble.

After the Bulldogs lose several football games, Archie and Veronica come up with a plan to boost school spirit. Jughead turns his attention to a student who he thinks might need his help. Betty seeks guidance from Cheryl after being faced with a difficult decision to make. Finally, Kevin is forced to face a dark moment from his past.

While helping Eric deal with his PTSD, Archie is forced to confront his own past trauma in the Army. To find the Lonely Highway killer, Betty and Tabitha come up with a way to lure truckers to Pop's. Cheryl extends an invitation to Kevin and Veronica gives Reggie a shot to prove her wrong.

After going MIA during the middle of her world tour, mega-star Josie McCoy returns to Riverdale unexpectedly. But it's not until she reunites with her former bandmates Valerie and Melody, that she opens up about the real reason why she's back. Elsewhere, Veronica gets creative after a surprise visit from her old friend Alexandra Cabot. Finally, Toni steps in to help Tabitha and Veronica land a deal.

Refusing to accept what's going on around her, Alice creates an imaginary musical fantasy world in which the Coopers are one big happy family again. But as her mother continues to spiral, Betty does her best to pull her back to reality.

After being visited by a mysterious figure who arrives in Rivervale, the gang find themselves faced with unexpected ultimatums.

To get the town of Riverdale out from under Percival's grip, Archie, Jughead and Betty devise a plan to turn Archie into a modern-day folk hero by performing a series of impossible feats. Meanwhile, Percival takes aim at Veronica, Toni and Tabitha, pitting them and their businesses against one another. Finally, after falling ill, Cheryl makes a surprising discovery about herself.

With palladium acting as his personal kryptonite, Archie decides he must build up his tolerance if he's going to stand a chance against Percival. Betty turns to Jughead for help uncovering some repressed memories from her childhood. Meanwhile, Veronica deals with a bombshell discovery that effects how she interacts with people around her, and Cheryl debates whether she should reach out to a former childhood crush.

After failing to get Pop's declared a historical landmark, Tabitha enlists Archie's help saving the diner from Percival. Betty opens up to Agent Drake about her ability to see people's evil auras. Meanwhile, after Reggie and the shareholders declare war on Veronica, she turns to Jughead for help maintaining control of the Babylonium. Finally, Cheryl reconnects with her childhood crush Heather, and Toni and Fangs continue their fight for custody of Baby Anthony.

In order to catch the Trash Bag Killer once and for all, Betty devises a plan to hold a serial killer convention in Riverdale. Elsewhere, Cheryl receives some news about Toni and Fangs that sends her spiraling, while Archie and Tabitha try to loosen the grip Percival has over his workers.

As the gang plan an event celebrating two of their own, strange biblical plaques around town threaten to put a damper on the special day.

Archie and the gang band together to save Riverdale from the greatest threat the town has ever faced.

Riverdale High's sock hop is around the corner and Archie has his sights set on taking Veronica (Camila Mendes) to the dance. Betty is confused when Kevin appears uninterested in taking things to the next level with her. Elsewhere, Jughead takes aim at Pep Comics, and Toni attempts to convince Cheryl to let Fangs perform at the sock hop.

Veronica decides to host a ghost show after learning that Riverdale doesn't celebrate Halloween the way she's use to in LA. Betty makes the most out of her night out with Archie and Reggie, and Jughead makes a major discovery in a mystery brewing in Riverdale.

Archie and Reggie lean on each other as they prepare for their big basketball game against Stonewall Prep. Meanwhile, as they deal with ongoing issues with their parents, Betty and Veronica decide to throw a slumber party with Kevin and Clay.

After Principal Featherhead agrees to let Kevin present him with an original musical written by him and Clay, Kevin learns the group might not be as into it as he had hoped. Elsewhere, musical rehearsals prompt Archie to question what he wants in life, while Betty and Veronica confront what's going on between them.

Veronica sets up a screening at the Babylonium after Julian gets his hands on a stag film and invites Archie, Reggie and the guys over for a watch party. Betty unexpectedly reunites with Polly and learns about her sister's new life in New York. Elsewhere, Jughead goes to war with Dr. Werthers over his censure of comic books.

Betty enlists help from Cheryl and Toni after deciding she's going to publish her own book. Veronica, Kevin and Clay host Hollywood movie star Josie McCoy, who is in town to screen her latest film. Finally, Archie's attempt to take his poetry to the next level doesn't go as planned.