Promise Me That

After Civil War, James Buchanan Barnes decides that he wants to just spend time with his old friend, Steve Rodgers.
A series of events put the friends in unfortunate and unforgettable circumstances that drag each other back together.
Bucky keeps his distance in fear of bringing Hydra to his battlefield buddy, steve, putting him in uncertain danger. He knows he's a super soldier, but he knows about a new plan hatched by the very few Hydra agents who work low level but are warming up something big.
Something Bucky knows Steve won't be able to handle, nor will the other avengers.
But things take a turn for the worst... or for the better?

Note: Infinity war never happens nor does Bucky go to wakanda.