First issue of three-issue miniseries where Natasha Romanoff and Yelena Belova face-off to own the codename Black Widow
First mention of the Red Room where orphaned girls were trained in the Black Widow Ops program
Yelena Belova identity revealed
⚠ There is debate as to whether this issue is the first full appearance of Black Widow, Yelena Belova or Inhumans #5