The video shows a swimming competition taking place in a large pool with multiple lanes, each separated by yellow lane dividers. Swimmers are seen wearing swim caps and goggles as they perform the butterfly stroke, moving their arms in a circular motion and their legs in a dolphin kick. The pool is surrounded by blue walls, and there are various advertisements and banners displayed around the pool area. The swimmers are competing against each other, and their times are being displayed on a digital board above the pool.