Riverdale Season 4 Episode 12 — Chapter Sixty-Nine: Men of Honor. Archie grows concerned for Frank after someone from his past arrives in Riverdale. Betty and Alices investigation into incidents at Stonewall Prep leads them on a collision course with their number one suspect. Jughead challenges Bret to a duel to settle their grievances, while Toni, Kevin and Fangs seek revenge against Nick St. Clair, who has shown up unexpectedly in Riverdale. Finally, a trip to New York City gives Veronica an opportunity to catch up with her old friend Katy Keene.