Natasha Romanoff, also known as Black Widow, confronts the darker parts of her ledger when a dangerous conspiracy with ties to her past arises. Pursued by a force that will stop at nothing to bring her down, Natasha must deal with her history as a spy and the broken relationships left in her wake long before she became an Avenger.
Super-soldier Alexei Shostakov and Black Widow Melina Vostokoff, Russian undercover agents, pose as a normal family in Ohio in 1995 with their surrogate children Natasha Romanoff and Yelena Belova. When the mission to steal S.H.I.E.L.D. information is completed, the family flees to Cuba to meet up with their boss, General Dreykov, who has Romanoff and Belova sent to the Red Room for training. Years pass, and Shostakov is imprisoned in Russia, while Romanoff joins S.H.I.E.L.D. after destroying Dreykov’s Budapest office, killing him and his young daughter Antonia, an act that Romanoff regrets.
[N] 2 She eludes US Secretary of State Thaddeus Ross and goes to a safehouse provided by Rick Mason in Norway. Belova, meantime, kills a rogue former Black Widow, but is exposed to a synthetic gas that neutralises the Red Room’s chemical mind-control agent. Belova sends the antidote to Romanoff in the hopes that she will return to aid Belova in her efforts to release the other Widows. Romanoff is attacked by Taskmaster, who is after the antidote, when she unknowingly drives away with it. Romanoff eludes Taskmaster and discovers that the antidote originated in Belova. Romanoff learns Dreykov is still alive and the Red Room is still operational when the two reconcile in Budapest. They are assaulted by Black Widows shortly after, and Romanoff and Belova manage to elude the Widows and Taskmaster before encountering Mason, who provides them with a helicopter.
To find out where Dreykov is, Romanoff and Belova break Shostakov out of prison. He instructs them to contact Vostokoff, who lives on a farm outside of Saint Petersburg and invented the chemical mind control technique employed on the Widows. Belova says that, despite the fact that they were not a real family, she believed they were. Dreykov’s agents arrive and transport them to the Red Room, an airborne facility, which Vostokoff says she provided their location to. Black Widow Watch Online
Before being kidnapped, Vostokoff and Romanoff employ face mask technology to trade places, allowing Vostokoff to free Shostakov and Belova. Romanoff, meantime, confronts Dreykov, who recognises her disguise. Taskmaster is revealed to be Antonia, who sustained such severe damage that Dreykov had to implant a chip in her brain, transforming her into the perfect soldier capable of imitating the actions of anybody she saw, including many Avengers. Romanoff tries to assassinate Dreykov, but owing to a pheromone lock he has implanted in every Widow, he is unable to do so. Dreykov admits that he uses his desk interface to command Widows all around the world. To nullify the pheromone, Romanoff purposefully smashes her nose, severing a nerve in her nasal tube, and then attacks Dreykov. While Shostakov fights Taskmaster, Vostokoff tries to knock out one of the facility’s engines, while Belova looks for the other Widows sent to defend Dreykov, Belova searches for the other Widows. Shostakov and Belova put Antonia in a cell together. Black Widow Watch Online
As the Widows attack Romanoff, Dreykov flees, but Belova prepares an antidote bomb that frees the Widows from mind control. As the facility begins to explode and tumble, Romanoff enters the control room and duplicates the positions of the other Widows around the world. Taskmaster is freed from the locked cage after Romanoff gets the two remaining antidote bottles. Belova shoots down Dreykov’s helicopter, killing him. Vostokoff and Shostakov flee in an aircraft. Before facing Taskmaster in freefall, Romanoff provides Belova a parachute. Romanoff uses the antidote on Taskmaster after landing, liberating her from servitude. As Belova, Vostokoff, and Shostakov bid their goodbyes to Romanoff, the freed Widows arrive. She hands Belova the last antidote vial and the portable drive, instructing her to locate and free the remaining Widows. Romanoff awaits Ross and his men, who have arrived to seize Antonia, as they leave with her.
Romanoff reunites with Mason two weeks later, and he gives her a Quinjet. She departs with the intention of rescuing the Avengers who have been imprisoned in the Raft. Black Widow Watch Online
In a post-credits sequence set after Romanoff’s death,[N 3] Belova meets Contessa Valentina Allegra de Fontaine at Romanoff’s tomb and is tasked with assassinating Clint Barton, the man whom de Fontaine accuses of being responsible for Romanoff’s death.
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