In H2O JUST ADD WATER: METAMORPHOSIS, get a 90-minute look at the entire first season of the hit series following Emma, Cleo and Rikki, three very different sixteen-year-old girls with one magical thing in common: they re mermaids.

After finding themselves accidentally stranded at sea floating towards mysterious Mako Island, they discover an underwater channel and swim to safety. They enter a wonderful, underwater world, but the nature of their new power draws them into wild adventures.

The girls get off the island as fast as they can and back to normal life. One by one, however, the girls find life is never going to be normal again, especially knowing the secret of their magic powers could be revealed to the world!