Max is a young boy who escapes the difficulties of his real life by creating a dream world that he visits when he falls asleep. In this dream world, he has created countless heroes and villains, but two of them stand out above all the rest: Sharkboy and Lavagirl. Together, the trio must embark on a dangerous mission to defeat the evil Mr. Electric and save Max's dream world from destruction.
Sharkboy, as his name suggests, was raised by great white sharks after being lost at sea as a young boy. He possesses incredible strength, agility, and is able to breathe underwater. However, his traumatic childhood experience has left him with a deep fear of being alone in water.
Lavagirl is an elemental superhero with the ability to control and manipulate fire and lava. Despite her fierce powers, she is often troubled by her perceived lack of purpose and is desperately searching for a way to define herself.
As they journey across Max's wildly imaginative dream world, the trio faces numerous obstacles and enemies, including a horde of ferocious electric eels and a giant robotic army controlled by Mr. Electric himself. However, their combined strength and determination prove to be enough to overcome these challenges and ultimately save the day.
Throughout their adventures, Max learns important lessons about bravery, friendship, and the power of creativity. With the help of Sharkboy and Lavagirl, he discovers that he too has the potential to be a hero and that even the most unimaginable dreams can come true.