I have a theory: I think in the later episodes we're going to have a flashback episode of how the hexagon bubble was created from Wanda's point of view. I think the episode begins with Wanda meeting Agnes for the first time and offered her a deal to help her cope with her grief over Vision from Infinity War by creating an alternate reality in Westview, New Jersey. I also believe Agnes gave Wanda the location to S.W.O.R.D's headquarters to steal Vision's body. Maybe it's not all Wanda's control as she mentioned when arguing with Vision. We still don't know who Agnes is and what her motives are but, I think she's behind everything and manipulating Wanda making her look like the villain.
Also, the SWORD director might be a villain too since he shot a missile at Wanda.