In the video, a person is applying a white substance to a crack in a brown surface. The person uses a tool to spread the substance evenly along the crack. The substance appears to be some kind of filler or sealant, and the person is carefully smoothing it out to ensure it covers the entire crack. The brown surface could be a wall, floor, or another type of material. The person's movements are deliberate and precise, indicating that they are experienced in this type of work. The video does not provide any additional context or information about the location or purpose of the repair.