Pouraka is a magical sea cavern tucked under the rocky cliffs near Barnacle Bay. Cora, a Pouraka mermaid, is torn between her friends in the seaside town, and her true love Tas, a foreign merman whose clan fled when men invaded their waters. Life becomes perilous for Cora and Tas when an unscrupulous oil rigger's son discovers the rich aquatic life Barnacle Bay harbors. With his intrusion, the merfolk must fight for their lives, and the lives of the dolphins that protect them