One Hundred And Fifteen: Return... - [s6e20] Chapter

: Polly (recently resurrected by Cheryl) helps Betty overcome her guilt regarding the "serial killer gene" by performing a symbolic cleansing.

: While Jughead uses his new portal-opening powers to rescue Reggie, Kevin, and Marty Mantle from execution, Percival retaliates by executing Alice Cooper , Frank Andrews , and Tom Keller instead. [S6E20] Chapter One Hundred and Fifteen: Return...

: Through a televised interview with Alice, Percival reveals he was an original 1580 settler of Sweetwater Village who sold his soul to the devil ( Mr. Cypher ) for freedom and immortality after being sentenced to death for practicing witchcraft. He crossed into Riverdale due to the explosion at Archie's house earlier in the season. : Polly (recently resurrected by Cheryl) helps Betty

: Tabitha and Jughead learn from Mr. Cypher that the land where Pop’s Chock’lit Shoppe stood is a Hellmouth . By moving the diner, Tabitha unknowingly allowed Percival’s power to grow. Cypher ) for freedom and immortality after being

: Jughead and Tabitha travel to Rivervale, where they learn that the two universes are conjoined and bleeding into each other. They discover that a phone call from "Bunker Jughead" to Betty—warning her of the bomb—prevented a clean break between dimensions, causing the supernatural powers and Percival's arrival.

For more details, you can read the full recap on the Riverdale Wiki or reviews from TV Fanatic and Entertainment Weekly . Chapter One Hundred and Fifteen: Return to Rivervale

In season 6, episode 20, " Chapter One Hundred and Fifteen: Return to Rivervale ," the gang discovers that their current antagonist, Percival Pickens , is actually an immortal sorcerer from the parallel universe of Rivervale . Key Plot Developments