The video shows a large, prehistoric-looking sea creature with sharp teeth and long, thin limbs. The creature is swimming in the ocean, moving its limbs in a way that suggests it is hunting for prey. The water around the creature is disturbed, indicating its movement through the water. The creature's skin appears to be rough and scaly, and its eyes are small and beady. The overall color of the creature is a dark greenish-blue, blending in with the ocean environment.