In the video, a person is seen brushing barbecue sauce onto ribs that are cooking on a grill. The ribs are already covered in a thick layer of sauce, and the person is using a brush to evenly distribute the sauce over the surface of the ribs. The grill is set up outdoors, and the person is wearing a glove on their hand while brushing the sauce on. The ribs are sizzling on the grill, and the sauce is bubbling as it cooks. The person is taking care to ensure that the sauce is spread evenly across the ribs, and the video ends with the person continuing to brush the sauce onto the ribs.