The Best Episodes Written By Aaron Allen

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

Martin works for Tamir in present-day Prague. Meanwhile, Gabi confronts Blazek about his shadowy activity; Kate is held prisoner in the president's compound in Chechnya; and suspicions rise about Dmitry and Ilyana.

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.

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.

Martin races against time in a search for Kate in Paris. Meanwhile, Dmitry discovers a key to getting close to Doku Zakayev in 2001 Prague, and Ballard gets swept up in a life-changing incident in 1991 Lithuania.

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.

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.

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.

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.

In a thrilling showdown, Elena finally confronts the Ewings for what J.R. did to her father and for framing Cliff. Sue Ellen, Pamela and Ann are shocked over the truths Elena exposes, realigning relationships and forcing Bobby to re-examine the steps he took to implement J.R.'s master plan. Meanwhile, Nicolas' plan to steal Ewing Global for the Cartel moves forward, setting the stage for a new battle.