Doug is an awkward Florida drug addict. Divorced and alone, he shares custody of his young daughter with his ex. Doug's reeling from losing his job at a local strip club, where he takes care of the fish in the aquarium. Things are beyond bleak - so Doug zips his boat out into the Gulf to end the pain of his reality. But at his lowest point, he discovers an injured Mermaid creature clinging to life. For Doug, it's a sign from the Universe - so he brings her home, gives her shelter in his tub and begins to nurse her back to health. He even names her Destiny. As their rapport blossoms, word of his secret gets out and he is forced to protect his new friend by any means necessary.但这一次,一说乃是琼霄御座发动的圣战之后,连门派中那些个小不点们也都一个个的叫嚣着,非要去参战!而且态度坚决之极,无可动摇…………