: Baby Anthony, though a firstborn, survives the plague, leading the group to believe he possesses special protection or significance. The Return of Sabrina Spellman

The episode centers on Percival's attempt to break the town's spirit by unleashing plagues to force Archie's construction crew back to work on his mysterious railroad.

: Percival systematically inflicts horrors upon Riverdale, including rivers of blood, swarming insects, lice, and painful boils. This culminates in a literal darkness falling over the town.