Black Widow returns to Russia to see if her homeland had really changed since she left. When a diplomat is found murdered on the grounds of the United States Embassy, Nick Fury and S.H.I.E.L.D. are drawn into an international crisis that pits secret agents against the Russian mafia. Into this conflict enters The Black Widow, now as a full-time Avenger as well as Russia's most famous expatriate, and Night Raven. His bloody one-man war against crime is just a pastime; his real obsession is to kill one person, Yi Yang, the woman who made him immortal.