When the two young mermaids Mimmi and Ondina run away from the Mako Island pod with Sirena to try and take away Zac's merman powers and turn him into a land boy once again, but Zac's connection to Mako has grown stronger.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.