What if you were on a surfboard when suddenly you were attacked by a giant ocean creature and are dragged under by enormous jaws. You need to breath put the creature shows no sign of releasing. Just before you pass out, a scaly blur speeds past your face. Its a human, but a tail replaced its legs. It slammed its tail against the creature causing it to let go. You are pulled up to the surface by human arms, but strangely not human. He pulls to to the surface and then you become friends.