With The CW's Archie Comics-based drama Riverdale set to return for Season 5 on Jan. 20, the network has released a set of official stills from Season 5's second episode, titled "Chapter Seventy-Eight: The Preppy Murders."

Set to air on The CW on Wednesday, Jan. 27, "The Preppy Murders" promises a "game changer" as Betty Cooper and Jughead Jones' investigation into the auteur takes a "twisted turn" following an unexpected phone call. Meanwhile, main protagonist Archie Andrews finds himself having to make an "impossible decision" when the person responsible for his father's death needs his help. At the same time, Veronica Lodge and her half-sister Hermosa attempt to force their father, Hiram, into retirement, all while while Cheryl Blossom puts a business plan of her own into motion. The CW's photos also show what appears to be a frank discussion between Jughead and his dad, F.P. Jones.

RELATED: Riverdale Casts Veronica Lodge's Jealous Husband

Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0022r -- Pictured (L-R): Skeet Ulrich as FP Jones, Mӓdchen Amick as Alice Cooper, Trinity Likins as Jellybean Jones, Cole Sprouse as Jughead Jones, and Lili Reinhart as Betty Cooper -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0023r -- Pictured: Camila Mendes as Veronica Lodge -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0026r -- Pictured: Marisol Nichols as Hermione Lodge -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0027r -- Pictured: Mark Consuelos as Hiram Lodge -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0029r -- Pictured: KJ Apa as Archie Andrews -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0037r -- Pictured: Cole Sprouse as Jughead Jones -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0038r2 -- Pictured: Skeet Ulrich as FP Jones -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0044r -- Pictured: KJ Apa as Archie Andrews -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD501b_0008r -- Pictured: Madelaine Patsch as Cheryl Blossom -- Photo: Shane Harvey/The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD501b_0008r -- Pictured: Madelaine Patsch as Cheryl Blossom -- Photo: Shane Harvey/The CW -- © 2020 The CW Network, LLC. All Rights Reserved.
Riverdale -- “Chapter Seventy-Eight: The Preppy Murders” -- Image Number: RVD502fg_0001r -- Pictured: Vanessa Morgan as Toni Topaz -- Photo: The CW -- © 2020 The CW Network, LLC. All Rights Reserved.

Per the full synopsis for "Chapter Seventy-Eight: The Preppy Murders,"

GAME CHANGER -- Betty (Lili Reinhart) and Jughead's (Cole Sprouse) investigation into the auteur takes a twisted turn after receiving a call from Bret (guest star Sean Depner). Meanwhile, Archie (KJ Apa) is forced to make an impossible decision when the person responsible for his father's death needs his help. Elsewhere, Veronica (Camila Mendes) and Hermosa (guest star Mishel Prada) come up with a plan to force Hiram (Mark Consuelos) into early retirement, and Cheryl (Madelaine Petsch) makes a business move. Mädchen Amick and Vanessa Morgan also star. Gabriel Correa directed the episode written by Janine Salinas Schoenberg & Devon Turner (#502). Original airdate 1/27/2021.

With Season 4 having concluded back in May, Riverdale is set to return for its fifth season next week on Wednesday, Jan. 20 with "Chapter Seventy-Seven: Climax" -- which will feature an appearance by KO Kelly, who previously appeared on the Riverdale spinoff series Katy Keene. "The Preppy Murders" will follow suit one week later.

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Riverdale stars K.J. Apa as Archie Andrews, Lili Reinhart as Betty Cooper, Camila Mendes as Veronica Lodge, Cole Sprouse as Jughead Jones, Madelaine Petsch as Cheryl Blossom, Casey Cott as Kevin Keller, Mark Consuelos as Hiram Lodge, Charles Melton as Reggie Mantle, Vanessa Morgan as Toni Topaz, Mädchen Amick as Alice Cooper and Erinn Westbrook as Tabitha Tate. The series returns for Season 5 on Jan. 20 at 8 p.m. ET/PT on The CW.