Marvel fans got a nice surprise this week when the company dropped the first trailer for Black Widow, the beginning of Phase Four of the Marvel Cinematic Universe, and the first solo adventure for Scarlett Johansson’s master spy and superhero. The trailer features a ton of action — and a ton of references to classic Marvel Comics.

The new video by ScreenCrush’s Ryan Arey breaks down all the coolest Marvel Easter eggs and secrets in the trailer, and tries to put together a timeline of events in the movie. How much is in flashback? When exactly in the MCU is the film set? Why does General Ross look so young? All those questions and more are answered below:

If you liked this video on the Easter eggs and secrets in the trailer for Black Widow, check out some more of our videos below, including our video essay on Avengers: Endgame’s alternate ending, our video about the Ancient One’s Endgame deleted scene, and why Thanos changed between Avengers: Infinity War and Endgame. Plus, there’s tons more over at ScreenCrush’s YouTube channel. Be sure to subscribe to catch all our future episodes. Avengers: Endgame is on home video now, and available on Disney+.

Gallery — The Evolution of Every Avenger’s Costume, From Movie to Movie:

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