Holly Sparkes was just your average 12-year-old, that was, until a bolt of lightning crashed into her.

Now Holly Sparkes is Electrigirl! After honing her superpowers, rescuing her best friend, and defeating the evil Professor Macavity - a holiday is just what Holly needs.

But there's much more than sun, sea, and sand on offer in the sleepy town of Polcarrow - and when a mysterious and deadly swarm attack there's only one person that can save the day - Electrigirl.