Uncle D is a Big Red Jellyfish and the leader of the Trenchcoats. This army of bad sea creatures is on a mission to help Uncle D become an unstoppable force and take over the world. Queen Amanda, leader of Sapphire Kingdom, must unite her mermaids with other good sea creatures to stop evil from consuming her beautiful world. But will dolphins, jellyfish, and lobsters be enough to thwart Uncle D?Autumn, our main protagonist, will stop at nothing to get her brother and father back from Uncle D. First, she needs to become a mermaid. Then, Autumn must follow her heart and lead an army into the greatest battle of her life. Mermaid Adventures brings dolphins, lobsters, sharks, squids, the ugliest of bad creatures, and beautiful mythical creatures to life.