Dora and her friends are excited for the big Clean Up Treasure Hunt. Their moms and dads have hidden gold coins in the sand, so they are collecting both trash and treasure. But on their break, when they put their bag of gold on a rock, the rock gets up and heads to the ocean! Yes, that is actually a turtle, not a rock! A mean mermaid has sent him to steal all the gold! Can Dora and her friends get their gold back?