As Bailey's Comet passes over Rivervale, Cheryl and Nana Rose revisit the tragic stories of the Blossom women through the years. Meanwhile, the once-in-a-lifetime celestial event prompts Cheryl to summon a familiar face to Rivervale - Sabrina Spellman.

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

Following the explosion at the Andrews residence, Archie assembles a team to help rebuild his home, while Jughead copes with his new reality. Meanwhile, at the Riverdale town hall meeting, Veronica breaks some news to the town, which later prompts a visit from her mother Hermoine. At Thornhill, Britta tries to get to the bottom of some strange happenings going on with Cheryl and Nana Rose.

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.

After suspecting that Percival is about to make a big play, Archie, Betty and Jughead warn their friends about his potential threat to the town. Meanwhile, Toni also finds herself a target after Percival announces his plans to rid the town of gangs, including the Serpents. Finally, Cheryl makes her move against Archie, Betty and Jughead.