Riverdale: “Chapter Twenty: Tales From The Darkside” Photos/ Trailer

Riverdale -- "Chapter Twenty: Tales from The Darkside" -- Image Number: RVD207a_0168.jpg -- Pictured (L-R): Lili Reinhart as Betty Cooper and Cole Sprouse as Jughead Jones -- Photo: Jack Rowand/The CW -- © 2017 The CW Network. All Rights Reserved

After a week hiatus, Riverdale is back with an all new episode! Check out photos, the episode synopsis and a trailer below. Be sure to tune in tomorrow night on the CW!

Episode synopsis: A TEST FROM THE BLACK HOOD — Riverdale remains on edge after a chilling letter from the Black Hood challenges the town’s residents to remain sinless for 48 hours — or he’ll strike again. Meanwhile, Jughead (Cole Sprouse) and Archie’s (KJ Apa) friendship gets tested after Penny Peabody (guest star Brit Morgan) unexpectedly calls in a favor that Jughead owes her. Elsewhere, Betty (Lili Reinhart) and Veronica (Camila Mendes) team up to investigate someone who Betty thinks could be the Black Hood killer. Finally, things take an unexpected turn for Josie (Ashleigh Murray) when a secret admirer takes things one step too far.

Watch Riverdale Wednesday nights on the CW!