The video shows a man and a woman in a gym. The man is wearing black shorts and no shirt, while the woman is wearing a black sports bra and black leggings. They are both standing on a black mat. The man is demonstrating how to do a proper sit-up, while the woman is watching and listening. The gym has wooden floors and walls, and there is a mirror on one side. The man is speaking to the camera, explaining the exercise technique.