The CW has released the promo and some promotional photos for the next new episode of Riverdale titled, ‘STAG’. Veronica (Camila Mendes) sets up a screening at the Babylonium after Julian (guest star Nicholas Barasch) gets his hands on a stag film and invites Archie (KJ Apa), Reggie (Charles Melton) and the guys over for a watch party.