Mermaids don't exist. They're only mythical creatures. Mark and Sarah were told this as kids, but that didn't stop them from imagining they were real. Together they spent hours talking about swimming with mermaids and what they look like. What Mark didn't know at the time was he was about to discover a whole new world.
By accident, Mark found himself face to face with the very same creatures he was told didn't exist. Now he had to learn to live all over again--as a mermaid . . .