Secret Avengers, volume 1 # 20 (Marvel Comics 2011)
The Secret Avengers are all dead save for the Black Widow.
The world's greatest secret agent finds herself one year in the past, on the most secret mission of all: saving her team, and saving the world, without letting anyone see her especially her team.
Secret Avengers, volume 1 # 20 is written by Warren Ellis with art by Alex Maleev and a cover by John Cassaday.
Secret Avengers, volume 1 # 20 is a 32 page comic book in full color and rated T.