: Major characters who are firstborn children, including Archie Andrews, Jughead Jones, Toni Topaz, and Fangs Fogarty , drop dead instantly during the reception.
: 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 Riverdale s06e18
The episode ends on a cliffhanger as the survivors realize they cannot defeat Percival alone. Heather, recognizing the need for a powerful necromancer to resurrect their fallen friends, reveals she knows someone who can help: from Chilling Adventures of Sabrina . : Major characters who are firstborn children, including
: The gang successfully lures Percival into a specialized "Stockade of Legarius" designed to negate his powers. However, he uses his final plague—locusts—to free himself just as the wedding reception begins. The Final Plague: Death of the Firstborn The
(Season 6, Episode 18) marks a pivotal, high-stakes shift in Riverdale , where the supernatural threats posed by villain Percival Pickens escalate into a full-scale reimagining of the Ten Biblical Plagues. Originally aired on June 26, 2022, the episode juxtaposes the town's struggle for survival with the celebratory, yet ultimately tragic, wedding of Toni Topaz and Fangs Fogarty. Narrative Overview & Key Events
: Despite the chaos, Toni and Fangs decide to marry to give the town a reason to celebrate. Veronica takes on the role of wedding planner while grappling with feelings of loneliness and an identity crisis.