Ben must make a tough moral decision to help save Ryn, and it has far reaching consequences.
Ryn must undergo a difficult process to ensure the survival of her species
Ben must put aside his jealousy in order for Ryn to mate.
The military spy on Ben, Maddie, and Ryn, while the mermaid struggles once mating season begins.
Ryn takes Ben and Maddie to a secret place below the ocean. Levi returns to land.
Nicole helps Ben and Maddie research the siren song appropriately. Other discoveries come to light.
Ryn wants to help Ben's mother. No matter the price.