Archie Andrews; Dilton Doiley; Betty Cooper; Veronica Lodge; Reggie Mantle; Kevin Keller; Jughead Jones; Nancy Woods; Cheryl Blossom; Ginger Lopez; Rachel Berry; Finn Hudson; Kurt Hummel; Blaine Anderson; Mercedes Jones; Noah Puckerman; Santana Lopez; Brittany S. Pierce; Sam Evans; Artie Abrams; Quinn Fabray; Alexander Cabot III; Josie and the Pussycats [Josie McCoy; Valerie Brown; Melody Jones]; Pop Tate; Chuck Clayton (cameo flashback); Moose Mason (cameo flashback); Midge Klump (cameo flashback)
Synopsis
At Riverdale, Betty and Cheryl fight over Puck, and Alex recruits Blaine to the Pussycats after Mercedes turns him down. In Lima, Dilton and Artie try to set things back to normal. But it may be too late -- when Betty finally kisses Puck it starts a chain reaction that could prevent everyone from getting home.