Four tweens develop a life-long friendship when they discover an injured mystical sea creature. They bravely go to extreme lengths to protect her from selfish scoundrels set on capturing her and even harming her for their own profit.

Just one enchanted jewel stands between earth and an army of evil spirits led by the devious ghoul, Phears. With the help of his new girlfriend and ghost pals, Max Doyle races to find the crystal and save the world.