The Best Episodes Directed By James Dewille

As Bailey's Comet passes over Rivervale, Cheryl and Nana Rose revisit the tragic stories of the Blossom women through the years. Meanwhile, the once-in-a-lifetime celestial event prompts Cheryl to summon a familiar face to Rivervale - Sabrina Spellman.

Hiram shares with Reggie his origin story and how he went from a young Jaime Luna to the powerful kingpin of Riverdale. Elsewhere, Reggie reflects on his relationship with his father.

As news begins to spread about the bombing at the Andrew's home, Archie, Betty and Jughead begin to deal with mysterious side effects from the explosion. Elsewhere, Veronica spirals after learning that Hiram may have been involved, and Cheryl is consumed with guilt when she believes she may have had a hand in the explosion.

After a lesson in sex education leaves the gang more confused than ever, Veronica decides to organize a make-out party at the Pembrooke. Elsewhere, Jughead attempts to help Ethel out of some trouble only to find himself in hot water as well.

When an elderly woman is brought in with signs of dementia, Dr. Wolf investigates whether she's suffering from a neurological disorder or having a late-in-life awakening. Dr. Pierce grapples with a chilling discovery about one of her patients.