The video shows a group of children playing with building blocks. The children are seen stacking the blocks on top of each other to create a structure. The building blocks are of various colors, including red, blue, green, and yellow. The children are focused on their task, carefully selecting and placing each block to ensure the structure is stable. The room they are in has a green floor and a brick wall in the background. The children are wearing casual clothing and seem to be enjoying their playtime.