WARNING: The following contains spoilers for WandaVision episode 4, "We Interrupt This Program," now streaming on Disney+.

Episode 4 of WandaVision, "We Interrupt this Program," throws a wrench into the high concept Disney+ show. Instead of visiting the knock-off living room of another familiar television comedy, the audience is unexpectedly right back in familiar Marvel Cinematic Universe territory. And ironically, the first episode not told from Wanda Maximoff's perspective is the one that begins to reveal her secrets.

The episode opens as Monica Rambeau's body is re-materializing, five years after the Snap in Avengers: Infinity War. The hospital in which her mother, Maria, had been treated for cancer is suddenly overrun with panicked and confused employees, patients and family members. Monica, who expected her mother to be recovering from a successful surgery, is shocked to discover she died three years ago. A few weeks later, she arrives at S.W.O.R.D. headquarters and is debriefed about what Earth is calling "the Blip."

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Monica is then told her late mother's orders dictate any returning vanished persons should be "grounded" to terrestrial-only service. That sends Monica off to Westview, New Jersey, where she connects with Ant-Man & the Wasp's FBI agent James Woo and a pair of local officers. Despite the fact that they're talking to her mere feet in front of a "Welcome to Westview" sign, they deny the place exists. Agent Woo then lets Monica know, "This isn't a missing persons case, Captain Rambeau. It's a missing town."

Monica uses a drone disguised as a toy helicopter to investigate the inhospitable neighborhood but gets sucked into its forcefield. Thor's Dr. Darcy Lewis soon arrives to help S.W.O.R.D. figure out what's on the other side, and she detects cosmic microwave background radiation and requests an old TV. The CMBR hides a broadcast signal, and when they use the "not flat" monitor to unscramble it, what they see are clips from the show's first episode. They don't yet know if what's on-screen is authentic, happening in real-time, recorded or fabricated, but what's certain is that big bang-level energy is behind it, or as Agent Woo puts it, "the universe created a sitcom starring two Avengers."

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The team is busy uncovering the true identities of the characters inside "the Westview anomaly" when they spot Monica, unharmed but dutifully playing her part in the collective illusion. They notice the drone has become a vintage helicopter, but are surprised it remains in color while the rest of the town is still monochrome. Whatever's happening to it, or anything else inside, S.W.O.R.D. isn't the one making the changes. Dr. Lewis later spots the radio in Wanda's kitchen and figures out a way to communicate with her. Agent Woo signals in and asks, "Who's doing this to you, Wanda?" to no avail. The audience, however, knows Wanda did hear the message, and it's beginning to seem like she chose to ignore it. After the failed attempt to communicate, Lewis and Woo watch the Twins' births from the third episode, in which Monica mentions Ultron, and realize someone is editing the feed.

What happens next fills in the missing scenes and removes any doubt about who's the force behind the Westview anomaly. Wanda's hands emit red plumes of energy as she tells Monica she's an unwelcome intruder, then blasts her through several buildings and back to S.W.O.R.D. When Vision re-enters, Wanda sees him not as her sitcom husband projection, but as he was at the end of Avengers: Infinity War -- lifeless and with a hole in his head where the Mind Stone used to be. Vision, restored to technicolor, says they could leave and go anywhere, but Wanda assures him that's not an option. The show then cuts to Monica outside of Westview, just as she breathlessly concludes, "It's all Wanda."

Popular theories have claimed that Agnes, who fans strongly suspect is Agatha Harkness, might have been pulling some strings, or that Mephisto, a devil-like character from the comics, could show up as her husband and reveal himself as the perpetrator. However, as fun as those theories are, Wanda is clearly Westview's creator, and while her motives outside of preserving Vision are still a mystery, it doesn't seem like anyone will be able to get through to her anytime soon.

Written by Jac Schaeffer and directed by Matt Shakman, WandaVision stars Elizabeth Olsen as Wanda Maximoff/Scarlet Witch, Paul Bettany as Vision, Randall Park as Agent Jimmy Woo, Kat Dennings as Darcy Lewis, Teyonah Parris as Monica Rambeau and Kathryn Hahn as Agnes. New episodes air Fridays on Disney+.

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