Ep 20. The Gracie Code (2)

The Gracie Code (2) is the twentieth episode of the second season of the Australian television series H2O: Just Add Water. The episode continues the story begun in the previous episode, focusing on the mysterious disappearance of Gracie, a young girl whose family may be connected to the mermaid myth.

Following the revelation that Gracie's aunt, Louise, is actually a mermaid, Emma sneaks into her house to search for answers about Gracie's disappearance. She discovers an old family diary owned by Louise's mother, which documents the family's connection to mermaids and their belief in a powerful mermaid's curse. The diary also reveals that Gracie's father, Max, may have left the family due to his own involvement with mermaids.

Meanwhile, Cleo and Rikki search for clues in the ocean, where they encounter an aggressive mermaid who attacks them. They realize that the mermaid is actually a protective force guarding a hidden underwater cave. Inside the cave, they find Gracie, who has apparently been there for weeks and is severely dehydrated. The girls manage to revive Gracie and bring her back to the surface, but they are pursued by the protective mermaid, who will stop at nothing to keep the cave's location a secret.

With Gracie safe but the mermaid still a threat, the girls are forced to come up with a plan to protect themselves and keep the mermaid from causing harm. They turn to Louise for help, hoping that her own mermaid powers can convince the protective force to stand down. However, the plan backfires, and the girls find themselves in greater danger than ever before.

As the episode reaches its climax, the girls must use their own mermaid powers to fight off the protective force and uncover the truth about Gracie's family and their connection to the mermaid myth. The Gracie Code (2) is a thrilling and suspenseful episode that delves deeper into the mythology of the series and raises questions about the true nature and power of mermaids.