Just as the town’s mayoral race gets underway, Riverdale High’s own student council election heats up. Archie steps up to help after learning that Hiram’s mobster associates have come to Riverdale to stir up some trouble. Meanwhile, things take a dangerous turn for Alice, Betty and Chic when an unexpected guest shows up at the Cooper residence. Finally, Toni, Veronica and Josie team up to solve a strange mystery involving Cheryl.