Chapter Four: The Last Picture Show

"It's been a week since the discovery of Jason Blossom's body. But his death would not be the first, nor would it be the last casualty that the town of Riverdale would suffer. The Twilight Drive-In, where I work; my home away from home. A piece of town history is closing for good, just when we needed a place to escape to the most. With Sheriff Keller knocking on every door, and neighbour suspecting neighbour, every day that passes is becoming more like Salem during the witch trials. And meanwhile, the girl next door, our friendly neighbourhood Hitchcock blonde, Betty Cooper, was wrestling with the knowledge that her best friend Archie Andrews was caught up in a forbidden romance."

- Jughead Jones

"Chapter Four: The Last Picture Show" is the fourth episode of the first season of Riverdale.

Synopsis
HOLDING ON — When Jughead learns that an anonymous buyer has plans to tear down the local drive-in, he fights desperately to keep it open. Betty finds her friendship with Archie on the line after stumbling upon some startling information she’s uncovered about Miss Grundy’s past. Elsewhere, Veronica confronts her mother Hermione about a suspicious meeting she witnessed between her mother and a shady Southside Serpent. Finally, after uncovering Betty’s diary, Alice finds the perfect opportunity to destroy Archie’s golden boy image.

Plot
The Twilight Drive-In, Jughead’s place of employment, is closing down. Jughead learns that an anonymous buyer has plans to tear down the local drive-in, he fights desperately to keep it open.

Betty is still afflicted with last week’s revelation: Dilton spotted Miss Grundy’s car at the river on the Fourth of July. She suspects that there may be an affair going on between Miss Grundy and Archie. After Archie and his dad attend a cello performance by his music teacher, Miss Gundy, Fred then invites her to dine with them at Pop’s. When Betty sees them enter, she takes Archie to the parking lot to confront him about it. He blurts out “Did Jughead tell you?” and that confirms what was once a theory. Betty is furious. While Veronica may think a “booty tutor” is “scandalous”, to Betty it sounds like “jail time”.

Betty's suspicion on Miss Grundy makes her obsessed on finding out the truth about Miss Grundy's unknown past. Betty’s internet research digs up even more troubling details about Grund. There is no record of her life before she moved to Riverdale a year ago. Archie, however, is nevertheless frustrated by Betty’s investigation, insisting she let it go. Although this does not stop Betty at all. Later on, Betty, along with Veronica, break into Miss Grundy's tiny Volkswagen Beetle and find proof of her fishy background. They find a box with Miss Grundy's driver's licence with the name Jennifer Gibson and a revolver. Archie confronts Geraldine who then tells him that she was in a violent, abusive marriage. When she left, she changed her name. He believes her.

Mrs. Cooper, dragging her husband with her, pay a visit to Archie's house to demand that Archie and Betty stop spending time together. Later on, as she is putting away laundry in her daughter's room, she discovers Miss Grundy's gun in Betty's drawer. In a panic of this discovery, she grabs for Betty's diary.

Starring

 * KJ Apa as Archie Andrews
 * Lili Reinhart as Betty Cooper
 * Camila Mendes as Veronica Lodge
 * Cole Sprouse as Jughead Jones
 * Madelaine Petsch as Cheryl Blossom
 * Ashleigh Murray as Josie McCoy (credit only)
 * Marisol Nichols as Hermione Lodge
 * Madchen Amick as Alice Cooper
 * Luke Perry as Fred Andrews

Guest Starring

 * Casey Cott as Kevin Keller
 * Martin Cummins as Sheriff Keller
 * Robin Givens as Sierra McCoy
 * Sarah Habel as Geraldine Grundy/Jennifer Gibson
 * Skeet Ulrich as FP Jones
 * Nathalie Boltt as Penelope Blossom
 * Barclay Hope as Cliff Blossom
 * Lochlyn Munro as Hal Cooper
 * Rob Raco as Joaquin

Co-Starring

 * Tom McBeath as Smithers
 * Caitlin Mitchell-Markovitch as Ginger Lopez
 * Olivia Ryan Stern as Tina Patel
 * Moses Thiessen as Snack Bar Guy

Trivia

 * This is the first episode where Josie McCoy doesn't appear.
 * Ms. Grundy tells Betty that she had once worked independently with a person named Tomoko Yoshido. In the comics, there is a supporting character named Tomoko Yoshida that resides in Riverdale.
 * Jughead is revealed to be homeless and was residing in the Twilight Drive-In up until it's closure.
 * Geraldine Grundy is revealed to be a deceased old woman who died 7 years ago. Jennifer Gibson took on her identity when she moved to Riverdale.
 * Betty's milkshake orders upgrade from old-fashioned vanilla to strawberry. Something that represents Betty's mental state.
 * Betty's diary is reminiscent of the one she owns in the comics.
 * The title for the fourth chapter is named after the 1971 film.
 * This is the first episode where Jason Blossom is not seen (in any way) - he's only mentioned by Cheryl at the cinema