Riverdale season 1 episode 11
Episode title: Chapter Eleven: To Riverdale and Back Again
Betty is slammed overseeing Homecoming and Reunion weekend, but Alice wants her to help with the Jason Blossom investigation. Alice turns to Archie and Veronica for help, but when Betty discovers they are working with her mom, she is not happy. After seeing his father FP start to clean up his act, Jughead wonders if it's the right time to give him another chance. Cheryl and Polly have both decided to go to Homecoming in Jason's honor, until a revelation waylays their plans. Meanwhile, Fred and Mary attend the Homecoming dance, leaving Fred to possibly reconsider the divorce.
