The Sea Princesses are having to go the long way to school to avoid two very grumpy turtles. Tubarina decides that she will bring the two turtles together, because they're probably just lonely.
The barracuda, who are normally scary, are swimming around Salacia. The sea princesses think something strange is going on. Could this Drylander swimming with the barracuda be the descendant of the Barracuda sea princess?
Polvina is asked to write a review of a ballet concert that Ester and Tubarina are dancing in. Unfortunately, the two princesses are clumsy dancers and they end up banging into each other and destroying the set.
Every time Ester gets angry with Marli bad things happen. Polvina and Tubarina tell her she's creating bad vibes. She decides she must try to think of something nice to say to Marli, and break the bad vibe spell quickly.
Bia sends a note to the princesses telling them she's coming to visit. They're delighted but Marli and Vivi are not. They've heard that Bia from the Abysmal Kingdom is a strange creature with six tentacles who walks weirdly.
The three princes have started a band so they can enter the 'Battle of the Bands' competition. Tubarina, Polvina and Ester decide they'll start a flute-playing band, and beat them. But who will win the 'Battle of the Bands'?
It's Salacia Day and every year Ester's grandmother knits her an embarrassing red beanie, which she loses so she can wear something much cooler. This year, she replaces it with a headband, just as her grandmother appears.
