As a new school year begins, the town of Riverdale is reeling from the recent, tragic death of high school golden boy Jason Blossom — and nothing feels the same.

As new details of Jason’s death begin to emerge, Archie pleads with Miss Grundy to come forward with what they heard at Sweetwater River. Betty makes an effort to mend her friendship with Archie but takes a different stance with Veronica who is trying to make up for her actions. With rumors around her brother’s death running rampant, Cheryl deals with the pressure in true Queen Bee fashion, while tensions boil over when Jughead stumbles upon a secret Archie was hoping to keep hidden. Finally, plans for the annual fall pep rally move forward with a performance by Josie and the Pussycats and a special appearance by Mayor McCoy.

After new information surrounding Jason's death comes to light, Cheryl finds herself under a cloud of suspicion and forced to come clean about the last time she saw her brother. Meanwhile, Archie makes a tough decision that puts a major strain on his relationship with Miss Grundy. Elsewhere, Betty decides to revive the school newspaper and asks for Jughead's help in investigating Jason's death, while Veronica and Ethel work on exposing some of Riverdale High's football players after rumors of a "shame book" begin to circulate. Finally, after getting grounded by his dad Fred, Archie must figure out a way to make it to the Taste of Riverdale event where Josie and the Pussycats will be performing a song he helped write.

With Jason's funeral around the corner, the Blossom family moves forward with last minute preparations - and a secret agenda. Meanwhile, Archie's attempt to refocus his energy on football comes to a halt when an opportunity to work with a new music mentor presents itself. Betty dives deeper into her investigation of Jason's death and unearths some dark revelations about her family. Elsewhere, after uncovering secrets about her own family, Veronica forms an unlikely friendship with Cheryl, who is having a tougher time with Jason's impending funeral than she lets on. Finally, Hermoine turns to Fred for help after receiving a cryptic message from the Southside Serpents.

With Riverdale High's annual variety show around the corner, Valerie's efforts to help Archie prepare for his big performance lead to some major fallout between her and Josie. Meanwhile, Betty and Jughead's investigation into Jason's death brings them to a home for troubled youth and face-to-face with Polly. Just as her relationship with her mother was on the upswing, an unexpected betrayal sends Veronica spiraling, while Josie deals with her own pressures at home after her overbearing father returns for her performance at the variety show. Finally, Hermoine's first day at Andrew's Construction finds her and Fred growing closer.

When a major piece of evidence is mysteriously destroyed, new rumors begin to swirl as to who was really behind Jason's murder. Tensions build when Jughead's father returns to the fray and it's revealed that he and Fred have some unresolved issues between them. Meanwhile, Veronica takes matters into her own hands after her fight with Hermione. Cheryl approaches Betty with an unexpected proposal that leaves Betty torn.

As Fred and his crew are about to start construction he loses his crew, which could put his livelihood in jeopardy. Wanting to help his dad, Archie and his friends pitch in to help but after one of them is attacked, the gang comes up with a plan that lands them in Southside Serpent territory. With Jughead’s secret revealed, he is worried about how his friends will react. Meanwhile, Veronica and Betty suggest throwing Polly a baby shower to make her feel better, but Polly is hesitant knowing how everyone feels.

Archie reluctantly agrees to escort Cheryl to her family’s official start of maple syrup tapping because he gets an offer that could help his future. Archie starts to become skeptical of the real reason the Blossoms are so eager to help him, however he gets some helpful information for Betty about her sister. Veronica is trying to be nice and unbeknownst to her, befriends a classmate that her father’s illegal doings has hurt. Hermione is conflicted about telling Fred the truth. Meanwhile, Alice is ready to get revenge on the Blossoms once and for all with the help of her two daughters.

Archie and Veronica are shocked to learn of the arrest but know they need to come clean to their parents about what they uncovered. Still hurt by the betrayal of his friends and torn over who to trust, Jughead reluctantly joins them in a quest for truth. Meanwhile, Cheryl confronts her mom about why she treats her so much worse than she ever did with Jason.

Archie and Veronica continue to grow closer. Betty is tired of her family acting as if nothing has happened and confronts her mother. Jughead finds himself in an unexpected situation, leaving Archie and the gang scrambling. Hermione makes Fred an offer that seems too good to be true. Meanwhile, the truth about Blossoms’ family business is revealed leaving Cheryl to take matters into her own hands.

As Fred's life hangs in the balance following the shooting at Pop's diner, Archie struggles with the emotional aftermath of what he witnessed. Meanwhile, as Veronica steps out of her comfort zone to support Archie, she learns that her father Hiram has arrived to Riverdale earlier than expected. Elsewhere, at Pop's diner, Pop Tate recounts the chilling details of the shooting, which leaves Jughead and Betty questioning the gunman's true motives. Lastly, after running into Cheryl at the hospital, Betty and Kevin are surprised to learn about the fire at Thornhill.

As the residence of Riverdale prepare for its upcoming Independence Day parade, Archie receives a phone call that will change the rest of his life forever.

As Archie struggles to keep the neighborhood kids away from Dodger’s influence, he turns to an unexpected ally for help. Jughead uncovers a mystery surrounding the author of the Baxter Brothers books, while Betty confronts Charles about his past. Finally, Veronica deals with a major shake-up at home, and Cheryl and Toni get some unexpected visitors at Thistlehouse.

In the aftermath of the prison break at Hiram's jail, Archie leads the charge to round up the remaining convicts on the loose. Tabitha reaches out for Betty's help when she realizes Jughead is missing. When Penelope re-enters the fold, Cheryl becomes suspicious of her true intentions.

Unnerved by a series of strange happenings around him, Jughead's quest for answers leads him to uncover the truth about Rivervale.

After learning that Percival Pickens is behind a blistering article calling Riverdale the worst town in America, Archie comes up with a plan to prove him wrong. Meanwhile, after the Town Council goes after their casino, Veronica and Reggie decide they're going to do everything on the up-and-up moving forward. Finally, Britta makes a risky move to help Cheryl.

When several of their own fall prey to Percival's latest plan, Cheryl calls upon fellow witch Sabrina Spellman for help. Elsewhere, Percival gives Reggie an ultimatum.

Archie and the gang gather intel about Percival so they can better understand where he came from and use that to their advantage. However, when their plan results in an unexpected outcome, the gang is left having to pay a terrible cost.

When Archie and Veronica's attempt to negotiate with Percival doesn't go as planned, the forces of good and evil finally face off, leading to some unexpected revelations.

Back in the present day and longing for her former life in Riverdale, 86-year-old Betty turns to a special friend to help her relive her last day of senior year with her friends as they were, their memories restored.