The story of 'Captain America: Winter Soldier' is complex. It mainly revolves around Steve Rogers adjusting to the modern world. Hydra has secretly infiltrated S.H.I.E.L.D. The Winter Soldier, Bucky Barnes, who was Steve's old friend, has been brainwashed by Hydra to be a deadly assassin. Steve discovers the truth about S.H.I.E.L.D. and Hydra's plot. He teams up with Natasha Romanoff to fight against this conspiracy and also tries to save his friend Bucky from the control of Hydra.
The Winter Soldier doesn't become Captain America in the regular comic storylines. It's Steve Rogers who holds that position. But comics are full of surprises and alternate universes, so there could be special instances where this happens in some less common or alternate versions.
In the fanfiction, their relationship could be complex. They've been through so much together as comrades in the Avengers. As parents, they might have different parenting styles. Captain America could be more open and idealistic, while Black Widow is more cautious and practical. But they both love their child deeply and work together to keep the child safe from the threats that come from their superhero lives. For example, when the child wants to join a mission too early, they have to work out how to handle it as a couple.
Another possibility is a fanfiction set in an alternate universe. In this universe, Captain America and Black Widow are not part of the Avengers. Instead, they are partners in a detective agency. They solve crimes that are related to super - powered individuals, using their own unique abilities and intelligence.
In the comics, Captain America and Black Widow are not typically depicted as a couple. They have a professional relationship based on their roles as superheroes within the Marvel universe.
The plot mainly revolves around Captain America's discovery of a conspiracy within S.H.I.E.L.D. He teams up with the Winter Soldier, who has a complex past tied to Cap. There are intense action sequences as they fight against Hydra agents who have infiltrated S.H.I.E.L.D.
In 'Captain America Winter Soldier' fanfics, the theme of trust is often present. Bucky has to learn to trust again, especially Steve. And Steve has to trust that Bucky can overcome his past. Another theme is the fight against evil. Even though the main threat in the movie was Hydra, fanfics might introduce new villains or continue the fight against the remnants of Hydra. Also, the theme of family is there in a way. Steve and Bucky are like family to each other, and fanfics might explore how they protect and support each other like a family would in difficult times.
I really liked the fanfic titled 'Shared Secrets'. In this one, Black Widow and Captain America start sharing their past traumas during a long - held - up mission in a hidden base. It delves deep into their characters and how they can support each other on a more emotional level.
One great 'Black Widow and Captain America' fanfiction is 'Shadows of the Past'. It delves into their past missions together and how those experiences shaped their relationship. It has a great mix of action and emotional depth.