Manateeween and The Witch Switch

There is a magical portal behind a witch's house in Manateeville Key. This is in the South Florida waters. On Halloween night the portal can magically transform Witches so that they can switch to become water creatures (specifically sharks) and manatees can switch to become kids during Halloween night. The manatee kids do it for fun and candy. It is a yearly tradition. This year two new additions, Scrapper and Tata, are nominated to go. One of the manatees, Speedster, has a special shark friend, Scrapper, and another manatee has adopted an orphan, Tata, as her kid sister. This Halloween, in the witch world, there is special purple moon ceremony. It only happens once in every hundred years. A new witch queen may be crowned during this special night. The queen's sister, Eclipse, wants to be become queen. She schemes a plan against her sister, Star. However, the queen also has a daughter, Skye. Eclipse makes the plan is made bigger to also stop her niece. The manatee kids want a fun night of Halloween trick or treating, costumes and especially candy. However, action unfolds for the manatee children and witch girls. Plans and events become intermingled. Will the night end with an upset or will everyone just dance it off?