The video shows a turtle and a crab in a tank of water. The turtle is large, with a grey shell and a white head, while the crab is smaller with a brown shell. The turtle is seen swimming towards the crab and opening its mouth as if to bite the crab. The crab, on the other hand, is seen moving its claws and legs, possibly trying to escape the turtle. The water in the tank is clear, and the background is a blue wall.