When does Agatha return?

A spin-off from the series WandaVision (2021), it is planned as one of the television series in the Marvel Cinematic Universe. Kathryn Hahn reprises her role as Agatha Harkness, with Aubrey Plaza, Joe Locke, Patti LuPone, Sasheer Zamata, Ali Ahn, Debra Jo Rupp, and Miles Gutierrez-Riley also starring. The series will consist of nine episodes. It will be part of Phase Five of the MCU.
Agatha Harkness finds herself powerless after breaking out her containment in Westview, New Jersey. She looks to some unlikely allies to join her on her quest to regain her former powers.