The video shows a large wave in the ocean, with a person swimming in the water. The wave is very tall and powerful, and the person appears to be struggling to stay afloat. The water is a deep blue color, and the wave is a light green color. The person is wearing a black wetsuit and is the only person visible in the video. The wave crashes down on the person, and they disappear from view for a moment before reappearing. The video ends with the wave continuing to crash down on the person.