Emma and her family are moving away from Cleo, Rikki, and Mako Island.
Bella has been a mermaid sence she was 8 years old, and is berkata to bring new energy to the group.
Rikki and Zane break-up.
Also there will be a new guy named Will. I don't know, but I think Bella, Rikki, and charlotte will like Will.