Big Brother / The Lost Kingdom

S1 E17: Tubarina's brother, Veto, is coming home. Tubarina isn't overjoyed because everyone's attention is on him! Tubarina discovers a secret of Veto's, but will she really blackmail her own brother? / After reading through old histories, the girls discover that there was a Barracuda Kingdom which is now lost. The girls are ecstatic at the idea of searching for a Lost Kingdom.