The last time Sam Wilson and Bucky Barnes where seen together was at the end of Avengers: Endgame. Endgame was the end of the current version of the avengers team, and the beggining of the next phase of marvel films. At the end of the movie original Captain America Steve Rogers travelled back in time to return the stones back to their original places in time. When he did this, he also went back in time to live his own life. Steve, in the present, during Tony funeral, had become an elderly old man. He handed the mantle of Captain America down to Sam Wilson.
Now both Sam and Bucky are about to get their own series. Coming on March 19th, the two will face Captain America: Civil War villain Baron Zemo. Interest fact about this series. It almost never made it to disney plus because creator and head writer Mark Spellman had a migraine. When he pitched his idea for the series to Kevin Feige, he had come down with a migraine. His pitch had been fumbled, but Marvel VP of Production of Development Nate Moor still believed in Spellman and gave him a second chance.
The series is going to be inspired by Sam Wilson Captain America comics, and will address issues of race and identity as Sam struggles to take up the mantle of Captain America. Sam and Bucky will face enemies all and knew. Meanwhile John Walker, aka U.S Agent, is trying to be branded as the future Captain America.
The show will feature Daniel Bruhl as Baron Zemo, Emily VanCamp as Sharon Carter, Wyatt Russel as John Walker/ U.S Agent, Anthony Mackie as Sam Wilson/ Falcon, and Sebastian Stan as Bucky Barnes/ Winter Soldier.