The video begins with a view from inside a submarine, looking out at the ocean. The submarine's control panel is visible in the foreground, with various buttons and screens. As the video progresses, a jellyfish is seen swimming in the water, glowing with a blue light. Text appears on the screen, providing information about the jellyfish. The text is in Spanish and translates to "The jellyfish is the largest animal in the world that does not have a brain. It is a mollusk that lives in the ocean, it has a bell-shaped body and tentacles that it uses to catch its prey." The video ends with a question posed in Spanish, "¿Qué he hecho?" which translates to "What have I done?"