See all the drama that will be stirred up as Polly Cooper (guest star Tiera Skovbye) returns to her hometown in next Thursday's "Chapter Seven: In a Lonely Place" episode of Riverdale. Watch the sneak preview in the video above, view preview images in our gallery, and read the official episode description directly below.

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 (Cole Sprouse) father returns to the fray and it's revealed that he and Fred (Luke Perry) have some unresolved issues between them. Meanwhile, Veronica (Camila Mendes) takes matters into her own hands after her fight with Hermione (Marisol Nichols). Cheryl (Madelaine Petsch) approaches Betty (Lili Reinhart) with an unexpected proposal that leaves Betty torn. KJ Apa and Madchen Amick also star.

Allison Anders directed the episode written by Aaron Allen.

MORE: Veronica Joins Josie and the Pussycats In New Music Video / Archie Comics Preview: Riverdale 1-Shot / Will Betty and Trev Be A Thing? / Riverdale #2 Is the Archie Breakfast Club

Riverdale stars KJ Apa as Archie, Cole Sprouse as Jughead, Lili Reinhart as Betty Cooper, Camilla Mendes as Veronica Lodge, and Luke Perry as Archie's father Fred Andrews, among others. The series' showrunner is Roberto Aguirre-Sacasa, Archie Entertainment's Chief Creative Officer and the writer of Afterlife With Archie, the publisher's wildly popular zombie series.

"Chapter Seven: In a Lonely Place" episode of Riverdale will air Thursday, March 2 at 9/8c on The CW Television Network!

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