Following the explosion that ended Season Five, a new day dawns in the town of RiverVALE, where everything is as it should be. Veronica and Reggie are now the town's power couple, while Jughead and Tabitha move in together. But with Cheryl demanding a return to the "old ways," this serenity will surely not last. And how could Archie and Betty possibly have survived?

A vengeful spirit from folklore, la Llorona arrives in Rivervale to terrorize the rainy town. Betty and Toni find themselves in the specter's path and must seek Cheryl’s help to protect the children in Rivervale, including Baby Anthony. Meanwhile, Jughead and Tabitha, along with Veronica and Reggie, experience their own hauntings that begin to put a strain on their respective relationships.