Synopsis

The conflict escalated, drawing the merfolk into a fierce battle beneath the waves. Ryn, Ben, and Maddie faced Tia in a desperate struggle for their world. Meanwhile, Maddie and Robb raced against time to find a cure for Xander's affliction, while Helen and the hybrids worked tirelessly to restore balance. Elsewhere, Ted grappled with the reality of Ben’s existence. It all culminated in a season finale that would determine the fate of their realm.