When a major piece of evidence is mysteriously destroyed, new rumors begin to swirl as to who was really behind Jason's murder. Tensions build when Jughead's father returns to the fray and it's revealed that he and Fred have some unresolved issues between them. Meanwhile, Veronica takes matters into her own hands after her fight with Hermione. Cheryl approaches Betty with an unexpected proposal that leaves Betty torn.

Betty takes matters into her own hands when she learns that The Farm has set their sights on someone in her inner circle. Meanwhile, when Hiram and Gladys’ control over Veronica becomes too much to handle, she sets a plan in motion to turn the tables on them. Elsewhere, Archie grows concerned about a young runaway he meets at the gym, while Jughead struggles to maintain control over the Serpents.

In the aftermath of the prison break at Hiram's jail, Archie leads the charge to round up the remaining convicts on the loose. Tabitha reaches out for Betty's help when she realizes Jughead is missing. When Penelope re-enters the fold, Cheryl becomes suspicious of her true intentions.

The next steps of Percival's plan catch Archie, Betty, Jughead, Veronica, Cheryl and Reggie off guard and forces them to face their past trauma.

Archie and the gang band together to save Riverdale from the greatest threat the town has ever faced.

Fearing that Betty is going down the wrong path, Alice forces her to join the after-school dance show, "American Grandstand." Meanwhile, Kevin is forced by Tom to join the Riverdale High basketball team, and Veronica finds herself cut off by her parents.

It's time for the town's annual Miss Teen Riverdale pageant and Betty, Veronica, Cheryl and Toni each have their own reasons for entering. However, when Alice doesn't allow Ethel to enter the pageant, the girls band together to make sure she has a fighting chance.