Killing all these people isn’t gonna bring your family back.
Natasha tracks Clint down in Japan where he’s still grieving the loss of his family and has adopted the persona of Ronin.
While the establishing shot is a stock shot of Tokyo, looking at the Tsurumitsubasa Bridge from Tokyo Bay, the scenes of Clint and Natasha were shot in the undecidedly non-Japanese city of Atlanta. The production altered Broad St SW in Atlanta to look like Tokyo for this brief sequence.
(Avengers: Endgame, 2019)