To catch up Avengers: Infinity War.
One of MCU movies.
As Steve Rogers struggles to embrace his role in the modern world, he teams up with a fellow Avenger and S.H.I.E.L.D agent, Black Widow, to battle a new threat from history: an assassin known as the Winter Soldier.
When he met the Winter Soldier, he was speechless because it was unexpected and unbelievable.
After watching all MCU movies so far, I wonder whether or not a role of the Winter Soldier is necessary to be a part of it.