In the video, a young boy is seen sitting at a table, playing with a toy train set. The train set is made up of several cars, each with a different color and design. The boy is focused on the train set, moving the cars around and examining them closely. He appears to be enjoying himself, as he smiles and looks around the room. The room is well-lit, and there are other toys visible in the background. The train set is the main focus of the video, and the boy's interaction with it is the main action.