Okay kiddo, let me explain Captain America: The Winter Soldier to you in a way that's easy to understand.
Captain America is a superhero who was created during World War II. He's a good guy who always fights for justice and helps people in need. In this movie, he's working for an organization called S.H.I.E.L.D. that helps to protect the world from bad guys.
But even though S.H.I.E.L.D. is supposed to be a good organization, Captain America starts to become suspicious. He discovers that there are some shady things going on behind the scenes and that some people in S.H.I.E.L.D. might not be as good as they seem.
One of the people Captain America meets is a guy called the Winter Soldier. The Winter Soldier is a bad guy who has some connection to Captain America's past. He's really strong and tough, and he doesn't seem to care about hurting people. Captain America has to fight the Winter Soldier to try and stop him from causing more trouble.
Throughout the movie, Captain America is trying to figure out who he can trust and who he can't. He works with his friends, including Black Widow and the Falcon, to try and get to the bottom of everything. Along the way, they have some really cool action scenes and fight some bad guys.
In the end, Captain America has to make some tough choices and fight some difficult battles. But he stays true to who he is and what he believes in, and he saves the day in the end.