The video showcases a group of animated vehicles, including a blue bus, a green truck, and a yellow submarine, swimming underwater. The vehicles have eyes and mouths, giving them a lively and friendly appearance. They are surrounded by colorful coral and plants, creating a vibrant underwater scene. The blue bus has a red tongue sticking out, while the green truck has a green tongue. The yellow submarine has a periscope on top. The background is a bright blue color, with bubbles rising to the surface, indicating that the vehicles are submerged in water.