: Jughead remains isolated in the bunker, writing stories to silence voices in his head. He eventually encounters his "Rivervale" counterpart, suggesting the barrier between dimensions is thinning. The Final Plague: Death of the Firstborn
: Those who are younger siblings, such as Betty (younger than Polly and Charles) and Cheryl (younger than Jason), remain alive. Riverdale s06e18
: Baby Anthony, though a firstborn, survives the plague, leading the group to believe he possesses special protection or significance. The Return of Sabrina Spellman : Jughead remains isolated in the bunker, writing
: 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. : Baby Anthony, though a firstborn, survives the
: Major characters who are firstborn children, including Archie Andrews, Jughead Jones, Toni Topaz, and Fangs Fogarty , drop dead instantly during the reception.
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.