The movie is based on the Marvel Comics character of the same name and it is intended to be the twenty-fourth movie in the Marvel Cinematic Universe (MCU).
Following the events of Captain America: Civil War (2016) and before her return in Avengers Infinity War, Natasha Romanoff finds herself alone and forced to confront a dangerous conspiracy with ties to her past. Pursued by a force that will stop at nothing to bring her down, Romanoff must deal with her history as a spy and the broken relationships left in her wake long before she became an Avenger.