At the end of Avengers: Endgame the entire Marvel universe had been shattered and re-assembled. Half the universe was wiped from existence and then brought back five years later. A few casualties stuck, one of whom was Paul Bettany’s Vision, the android created by a combination of The Avengers, their enemy Ultron, and the power of one of the infinity stones.
WandaVision is the first new entry in the Marvel Cinematic Universe in over a year. The first new entry to be a TV series, it features the return of Vision and his paramour Wanda Maximoff to a world that looks a lot like a TV sitcom. It’s weird, and it’s delightful.