These short reels are 9-10 minutes of excellent footage and storytelling.
Please note: this review may have mild spoilers as this docuseries acts as a "catch-up", reminder and/or telling of a characters' inception in the Marvel Cinematic Universe up until now in phase 4 collated in 9-10 minutes.
In case you haven't seen a Marvel Cinematic Universe movie before, any or a couple, this is 10 glorious minutes cleverly cut from multiple films that act as a highlight reel of a character's journey or backstory through the MCU into Phase 4. Extremely important if you want to learn about a character before heading into DisneyPlus's WandaVision, starring Wanda Maximoff and The Vision and supporting cast.
Wanda Maximoff (also known in the comics as The Scarlet Witch) is a woman who started off in the MCU as someone who hated a particular Avenger and joined the villainous Ultron with her twin brother Pietro Maximoff in his plans of ridding the world of The Avengers. However, having learned of Ultron's ultimate plans, they side with the Avengers but Pietro dies in the fight. Wanda eventually meets The Vision and develops an interest in him. With their developing relationship and Wanda working with Captain America, an incident occurs whilst on an assignment which leads to an Act coming into play leaving the Avengers torn apart and Wanda deemed a criminal and imprisoned. Once Wanda is able to escape, she flees with The Vision and when they become under attack by Thanos and The Black Order, Wanda must do whatever she can to protect her love, even if it means killing him to save half of all living life in the universe. Unfortunately, killing The Vision herself, not only was it undone, but Thanos killed The Vision himself and Wanda is witness to this, twice.
These 10 minutes are a collection of clips, but if you were to get the backstory so far surrounding this character and all the events that lead up to WandaVision, you must watch Iron Man, Thor, Captain America: The First Avenger, Captain America: The Winter Soldier, Avengers: Age of Ultron, Captain America: Civil War, Avengers: Infinity War & Avengers: Endgame.
This is an excellent recap for both fans and newbies alike.
WandaVision picks up after these events.