A hard PG-13 retelling of Black Widow with Madame B as the antagonist and Natasha's adoptive sister Yelena Belova as the brainwashed assassin that she has to save. Aside from that description, there's no Red Dust Maguffin, no CGI explosion fest climax at a flying fortress, no Dreykov or Antonia and a different post-credits scene with Melina and Damon deciding to plan their revenge against the Romanoffs.