The video features a baby standing in a room with a colorful alphabet block toy. The baby is wearing a diaper and has a tuft of hair on its head. The baby is seen picking up a block with the letter 'E' and then placing it on top of a stack of blocks that spell out the word 'AAA'. The baby then picks up a block with the letter 'A' and places it on top of the stack. The baby continues to add blocks to the stack, one by one, until the stack is quite tall. The baby then looks at the stack and seems to be satisfied with its work. The room has a colorful carpet, and there is a purple toy box in the background.