‌Newlywed couple Wanda Maximoff and Vision move to the town of Westview to begin their life together, all while trying to keep their powers secret from their nosy neighbor Agnes and Vision's boss, Mr. Hart. But when Mr. Hart and his wife come over for dinner, chaos ensues while Wanda tries to prepare a meal, and then things turn eerie when Mr. Hart chokes at the dinner table.

— Toast Mate 2000 from the Stark Industries commercial: Stark Industries is the tech company founded by inventor and scientist Howard Stark, the father of Tony Stark (better known as Iron Man), who also ran the company for a time.

— Maison du Mépris wine bottle: The label on this bottle, which translates to "House of Contempt/Misery" references the Marvel comics storyline House of M, in which Wanda has a mental breakdown after the death of her children and alters the fabric of reality to restore her family.

— Names of Vision's coworkers: Vision's boss, Mr. Hart, is likely a nod to one of the creators of the 1985 miniseries The Vision and the Scarlet Witch, Steve Englehart. His coworker Norm could also be a reference to Norman Webster, a character who sold Vision and Wanda a house in the show.

While preparing for a neighborhood magic show, Wanda and Vision meet more of their neighbors, including Geraldine and Herb, and get further acclimated to Westview. Throughout the episode, strange things start to happen around them, suggesting that the reality they're living in isn't what it seems.

— Strücker Watches commercial: In the MCU, Baron von Strücker is the HYDRA agent who gave Pietro and Wanda their powers, and he's also a supervillain in the Marvel comics. The watch has a HYDRA logo on it, further emphasizing the HYDRA reference.

— Supermarket signs: The "BOVA MILK" sign references Bova, the humanoid cow who delivered Wanda and her twin brother Pietro on Mount Wundagore in the Marvel comics.

— Grim reaper helmet: During the animated opening credits, when Vision passes through the floor, there's a dark shape that looks like the helmet worn by Marvel Villain Grim Reaper in the comics. Grim Reaper is also the brother of Wonder Man, whose brain waves were used to create Vision.

— Toy helicopter: The colorful and out of place toy helicopter Wanda finds in the bushes in front of the couple's house has the number 57 on it, likely a nod to the fact that Vision first appeared in Avengers #57. It's also emblazoned with the symbol for S.W.O.R.D. (Sentient Weapon Observation Response Division), a government agency that in the comics primarily dealt with extraterrestrial threats to Earth.

— Illusion and Glamour: During the talent show, Wanda and Vision perform as "Illusion and Glamour," which is a nod to the stage names of Glynis and Ilya Zarkov, a married couple with superpowers who Wanda and Vision befriend in the comic The Vision and the Scarlet Witch. In addition, the cabinet the couple uses for their magic act actually has an image of the Mind Stone on it.

— Beekeeper: In the Marvel comics, beekeeper outfits are connected to A.I.M. (Advanced Idea Mechanics), an evil organization of scientists founded by Baron von Strücker who at one point supplied weapons to HYDRA. However, the outfit also has the symbol for S.W.O.R.D. on it, suggesting that the meaning of this figure could be layered.

— Names of Wanda and Vision's neighbors: Their neighbor Herb seems to be another Marvel comics reference to the super-scientist who runs Mount Wundagore, the haven where Bova delivered Wanda and Pietro when they were born. There isn't a character named Agnes in the comics, but fans have speculated that Agnes is actually Agatha Harkness, a witch from the Marvel comics.

— Wanda's pregnancy: In the comics, Wanda and Vision have two children together named Tommy and Billy, who she created with her powers. Her pregnancy in the series could also be another nod to the House of M comics plotline.

Wanda's new pregnancy progresses rapidly, causing magical chaos throughout their neighborhood in Westview. After Vision rushes off to get the doctor, Wanda's new friend Geraldine helps her give birth to two twin boys, before an offhand comment from Geraldine leads Wanda to forcibly eject her out of the couple's sitcom reality.

— Simster paint cans: When Wanda and Vision are painting the nursery for their new babies, the cans have the name Simster on them, which is actually a nod to WandaVision storyboard artist Jeremy Simster.

— Pietro: Wanda's twin brother Pietro Maximoff, also known as Quicksilver, had the power of super speed. In the MCU, he was killed in Avengers: Age of Ultron while saving the life of Hawkeye and a Sokovian child.

— Hydra Soak commercial: Like the commercial in Episode 2, this references HYDRA, the criminal organization whose lead scientist Baron von Strücker's experiments were responsible for giving Wanda and her brother Pietro their superpowers. The voiceover starts off with the line "escape to a world all your own, where your problems float away," a clear hint to the overall mystery of the show.

— Billy and Tommy: The birth of Wanda and Vision's twin sons, Billy and Tommy, harkens back to the Marvel comics, in which Wanda used magic (and fragments from the soul of a demon) to create children for her and Vision. The existence of the twin boys also supports speculation that WandaVision is drawing from the House of M plotline from the comics.

— Geraldine's necklace: Wanda notices that Geraldine is wearing a necklace that has a pendant that appears to be the logo for S.W.O.R.D. (Sentient Weapon Observation Response Division), a government agency from the comics that's responsible for dealing with extraterrestrial threats.

— Agnes' necklace: While talking to Vision and Herb, Agnes is wearing a necklace that appears to resemble the brooch worn by the Marvel comics witch Agatha Harkness, supporting the fan theory that Agnes is actually Agatha.

This episode is the first that occurs primarily outside the sitcom world of Westview, describing how S.W.O.R.D. agent Monica Rambeau was accidentally sucked into the force field surrounding the town of Westview. After S.W.O.R.D. and a variety of other government agencies converge around Westview to try to figure out what's going on in the town, Darcy Lewis' uncovers a broadcast of Wanda's sitcom that allows them to begin investigating.

— The Blip/Reverse Snap: WandaVision is the first show or movie in the MCU to show the aftermath of the "the blip" — aka when the Avengers undid the effect of Thanos' snap during Avengers: Endgame. While Monica Rambeau is re-materializing, she hears the voice of her mom's best friend, Carol Danvers (also known as Captain Marvel), calling her "Lieutenant Trouble," her childhood nickname.

— Maria Rambeau: The mother of Monica Rambeau and best friend of Carol Danvers/Captain Marvel, Maria Rambeau was responsible for founding S.W.O.R.D. (currently named Sentient Weapon Observation Response Division). At the start of this episode, Monica learns her mom died three years earlier after her cancer returned.

— FBI Agent Jimmy Woo: Woo was originally a S.H.I.E.L.D. agent who worked with Melinda May before being recruited into the FBI. He appeared in Ant-Man and the Wasp, where he was the mildly competent FBI parole officer of Scott Lang/Ant-Man.

— Dr. Darcy Lewis: Darcy Lewis was first introduced in the original Thor movie as the assistant to astrophysicist Dr. Jane Foster, and also appeared in Thor: The Dark World. When Darcy reappears in WandaVision, viewers learn she's become an astrophysicist who is there to consult with S.W.O.R.D. on what's going on in Westview.

Vision begins to realize that Wanda is mind-controlling the residents of Westview, while Wanda has her hands full with their rapidly growing twin sons and their new dog. Meanwhile, outside of the sitcom bubble, Dr. Lewis, Agent Woo, and Captain Monica Rambeau are working to better understand the nature of the reality that Wanda has seemingly created, hoping to reason with her and help free the townspeople trapped inside. As Wanda and Vision are having an argument, the arrival of a surprise visitor shocks everyone — including Wanda.

— Monica's scans: When Monica Rambeau is being examined by a doctor after emerging from the Westview bubble, something causes her scans to come out blank and her blood samples to be untestable. This could be the first sign within the MCU of the origin of Rambeau's superpowers.

— The Sokovia Accords: First referenced after an Avengers mission led to a number of civilian deaths in Lagos in Captain America: Civil War, the Accords were legal documents introduced by the United Nations that intended to monitor and regulate the behavior of all "enhanced beings."

— Sparky the dog: This is a nod to the 2016 Marvel comic series "The Vision," in which Vision moves to the suburbs with a synthezoid family that he created. The Vision family also has a synthezoid dog named Sparky.

— The "hex": Although in the MCU Wanda's powers seem less mystical, in the comics her powers were much more traditionally witch-like, involving literal hexes.

— Lagos paper towels commercial: The Lagos brand paper towels, with the tagline "for when you make a mess you didn't mean to," are a reference to the events of Captain America: Civil War, in which Wanda was blamed for accidentally setting off an explosion that killed 26 civilians. This tragedy led to the United Nations creating the Sokovia Accords.

— Evan Peters as Pietro Maximoff: Though Wanda's twin brother Pietro (played by Aaron Taylor-Johnson) died during Captain America: Civil War, Peters played Pietro/Quicksilver in Fox's X-men movies. It's unclear if Peters' appearance as Pietro/Quicksilver is a recasting of the character as part of a multiverse crossover or whether it's just a nod to the X-men franchise.

It's Halloween in Westview, and Uncle Pietro is on hand to help Wanda and Vision's sons create some chaos. It doesn't take long for the boys to start manifesting their own powers — which are very similar to those of their mother and uncle. Outside of the sitcom reality, Dr. Lewis, Agent Woo, and Captain Monica Rambeau go rogue after S.W.O.R.D. Director Hayward kicks them off the mission, and Rambeau and Woo set off to find an aerospace engineer who can hopefully help them get back into Westview. But when Vision sets out on his own to try to help the townspeople escape, his attempt to leave forces Wanda to take drastic action — expanding the bubble and absorbing much of the area around Westview (as well as a number of S.W.O.R.D. personnel).

— The Halloween costumes: Wanda/Scarlet Witch, Vision, and Pietro/Quicksilver all dress up for Halloween in outfits that resemble their characters' traditional costumes in the Marvel comics. Even Tommy and Billy are wearing the costumes of their comic superhero identities Speed and Wiccan.

— Pietro's "demon spawn" joke: Pietro teasingly referring to the twins as "demon spawn" is a reference to the Marvel comics, in which Wanda creates her twins Billy and Tommy out of shards of the demon Mephisto.

— Tommy and Billy's powers: The twins start to exhibit powers similar to those of their superhero comicbook counterparts, Speed and Wiccan. So far, Tommy appears to have gotten the power of superspeed from Pietro, while Billy has seemingly inherited Wanda's telepathy and telekinesis.

— Wanda and Pietro's accents: Wanda's accent has shifted throughout her time in the MCU, but while in Westview, neither Wanda and Pietro have their Sokovian accents — though Wanda's Sokovian accent did reemerge during the confrontation with S.W.O.R.D. Director Hayward during the previous episode.(In the X-Men Universe, Evan Peters' Pietro/Quicksilver was raised in the U.S. and has always had an American accent.)

— Shangri-La: In the Marvel comics, the mythical land of Shangri-La is actually a real place that was canonically founded and protected by Vision.

— Monica's medical scans: Dr. Lewis says that passing through Wanda's magical barrier around Westview twice has rewritten Monica's cells on a molecular level, changing her in ways as yet undetermined — but that likely will contribute to Monica's own superhero origin story.

— Pietro's death: Though there's still a lot of confusion about the true identity and multiverse implications of Evan Peters' Pietro/Quicksilver's presence in the MCU, his comment about getting "shot like a chump in the street for no reason at all" and Wanda's subsequent vision of his zombie-like form accurately describe the way that the MCU Pietro/Quicksilver (originally portrayed by Aaron Taylor-Johnson) is killed during Captain America: Civil War.

With Vision still in the outskirts of the Westview bubble, Wanda is depressed and decides to take a day for herself after Agnes offers to watch Billy and Tommy. When Vision awakens, he stumbles across Dr. Darcy Lewis, and the two attempt to journey back to Wanda's house together, with Dr. Lewis catching Vision up on everything about the real world that he's forgotten. After trying and failing to enter Westview on a rover designed for outer space, Monica pushes through the barrier out of sheer force of will and, in the process, gains superpowers. But when she goes to confront Wanda, Wanda is shepherded away by Agnes. Once in her neighbor's house, Wanda realizes Billy and Tommy are missing, and soon discovers a dark and mysterious chamber in Agnes' basement, leading Agnes to reveal that she's actually the powerful witch Agatha Harkness and she's been manipulating Wanda all this time.

— Monica's powers: On her third trip through Wanda's magical barrier surrounding Westview, Monica Rambeau appears to have finally gained her superpowers, transforming her into a being that can absorb, generate, and manipulate electromagnetic energy. Monica has had a number of comic alter egos over the years, but it's likely that in the MCU she'll go by Photon or Spectrum (since there's already a Captain Marvel).

— Nexus commercial: The commercial in this week's episode is for the antidepressant "Nexus" — for "when the world doesn't revolve around you... or does it?" — which is likely a reference to the Nexus of All Realities. In the comics, the Nexus of All Realities is an interdimensional gateway where all of the Marvel alternate universes intersect and beings can travel between different realities within the multiverse.

— Fly on the wall: While in Agnes' house, Wanda spots an insect on the wall — a potential reference to the demon Mephisto, whose first appearance in the Marvel comics was in the form of a fly.

— Agatha Harkness: Wanda's neighbor Agnes was revealed to be Agatha Harkness, a powerful witch from the Marvel comics who has been alive since the Salem Witch Trials and was Wanda's mentor. Although Agatha is without the shapeshifting cat Ebony she has in the comics, Agnes' pet rabbit is a potential nod to the character's magical nature.

— Book of Magic: When in Agatha's basement, Wanda notices an old magical book that appears to be glowing orange. It's not clear yet what the book is, but there's speculation that it's the Darkhold, also known as the Book of Sins, an object containing an extreme amount of dark energy.

After Agnes reveals her true identity as the witch Agatha Harkness, she takes Wanda on a journey back through her own memories in an attempt to figure out how she created Westview's alternate reality. The two visit many stages of Wanda's life, including the death of her parents, when she "got" her powers, and the first time she connected with Vision, finally arriving at the moment when Wanda's grief consumed her and literally erupted out of her — changing the real Westview into a sitcom world. Agatha realizes that Wanda has used chaos magic in order to build this reality and identifies her as the Scarlet Witch. Meanwhile, outside of Westview, S.W.O.R.D. Director Hayward has used some of Wanda's energy to bring Vision back to life — only now, he's entirely colorless.

— The Salem Witch Trials: In the Marvel comics, Agatha Harkness's origin story tracks back to the Salem Witch Trials. WandaVision slightly rewrites her origin story to suggest that Agatha's inability to control her dark magic was the source of the persecution the witches were facing.

— Stark Industries bomb: A Stark Industries bomb landed in Wanda and Pietro's home in Sokovia and killed their parents — an event which Avengers: Age of Ultron revealed was a catalyst for the twins volunteering for HYDRA. Agatha guesses that Wanda unknowingly used a "probability hex" to stop the bomb from exploding for the two days that she and Pietro lay hiding in the ruins of their home, though that isn't confirmed.

— Chitauri scepter: During HYDRA's experiments, Wanda was told to touch the mind stone — which was at the time housed in the scepter, a weapon given to Loki by Thanos in order to allow him to command an army of Chitauri and attack Earth during The Avengers. Though it was originally stated that the mind stone was responsible for giving Wanda her powers, this episode retconned her origin story by revealing that contact with the mind stone actually just tapped into Wanda's latent magical abilities.

— Chaos magic: One of the most powerful forms of magic within the Marvel comics universe, chaos magic allows one to manipulate and reconstruct the fabric of reality itself.

— Scarlet Witch: Wanda Maximoff's superpowered identity has always been the Scarlet Witch in the Marvel comics, but the MCU has neglected to explore that part of her until now. This episode retcons some of Wanda's backstory as seen so far within the MCU in order to reintroduce her as the Scarlet Witch — an incredibly powerful being capable of using chaos magic.

— White Vision: In the comics, Vision is colorless for a period of time after he's disassembled and then reconstructed. This version of Vision lacks the humanity of his original self, making him a potentially deadly weapon.

After Agatha Harkness reveals to Wanda that her true identity is the Scarlet Witch, she attempts to absorb Wanda's chaos magic for her own purposes, but is defeated after a long battle during which Wanda steps into her full magical abilities. At the same time, Vision is fighting with White Vision, but is eventually able to re-imbue him with the original Vision's memories, freeing him of S.W.O.R.D. Director Hayward's control. After interacting with the real identities of some of the Westview residents, Wanda decides to reverse the hex, freeing the town from her magical control and leading to Vision and their sons Billy and Tommy vanishing from reality — or so it seems.

— The Darkhold: The book of magic that was spotted in Agatha's basement turns out to be the Darkhold, an incredibly powerful book of dark magic also called the Book of Sins (or as Agatha calls it, the Book of the Damned). Apparently, it has an entire section on the Scarlet Witch, which Agatha claims says that she will destroy the world.

— The Sorcerer Supreme: Agatha Harkness claims that the Scarlet Witch's power is greater than even that of the Sorcerer Supreme — but there is currently no Sorcerer Supreme on Earth after the Ancient One died in the first Doctor Strange movie. Though Stephen Strange eventually becomes the Sorcerer Supreme of Earth in the Marvel comics, he has yet to earn that title within the MCU.

— Monica's powers: Monica Rambeau uses her newly acquired powers for the first time when attempting to save Billy and Tommy's lives after S.W.O.R.D. Director Hayward shoots at them — and the bullets magically pass through her body, falling to the ground behind her.

— Scarlet Witch's powers & costume: After claiming the full power of the Scarlet Witch, Wanda gets a new headpiece and costume similar to what the Scarlet Witch wears in the Marvel comics. Agatha warns that Wanda has no idea what she's done — potentially referencing the fact that in the comics, every time chaos magic is used it weakens the fabric of reality, making it easier for the evil god Chthon (also known as the God of Chaos) to break through into the primary reality.

— Skrulls: This shape-shifting alien species was first introduced in Captain Marvel, where they were refugees fleeing persecution by another alien race. Although in the MCU the Skrulls have largely been on the side of the heroes so far, their Marvel comics history hints that potentially a more villainous faction of Skrulls will be arriving on Earth in the future.

— Ralph: Despite fan theories that the Fake Pietro (played by Evan Peters) was actually the X-Men universe's version of Quicksilver, this episode revealed that he was actually just a Westview resident named Ralph — otherwise known as the fictional husband that Agnes/Agatha frequently referenced.

— Billy and Tommy: Though the boys seemingly disappeared after Wanda got rid of the Westview bubble, she hears their voices crying out for help during the second post-credits scene while studying the Darkhold, hinting that this is likely not the last time they'll appear within the MCU.