A boy named Jack discovers he has superpowers after defending himself against twin bullies. He becomes a superhero with the help of a mysterious man and gains super speed and strength. Jack joins forces with other superheroes, including Superman and Wonder Woman, to stop the villainous Dr. Bad Guy, who has stolen their powers. The superheroes use their brains to outsmart Dr. Bad Guy and retrieve their powers.
Later, Jack teams up with Batman and Jerry to stop the Lego Mayor, who has built a machine that makes him big and is planning to turn the world into Lego. They successfully stop the mayor and save the world.
The story also features a competition among superheroes, including Thor, Captain Marvel, and the Hulk, to determine who is the greatest superhero of all time. However, the competition is rigged, and the superheroes are tricked into giving up their powers. In the end, they realize they don't need their powers to be super and use their brains to defeat the villain.
Here are the key facts extracted from the text:
1. A boy is training in karate to defend himself against the "crazy twins" who live down the street.
2. The boy meets a mysterious man who claims to be able to give him superpowers.
3. The boy is given a cupcake-themed superpower, but it's not what he expected.
4. The mysterious man reveals that he made a mistake and the cupcake powers were meant for someone else.
5. The boy is given a new superpower, which is to summon his powers by saying "Shazam".
6. The boy becomes a superhero with super speed, strength, and agility.
7. He meets other superheroes, including Superman and Wonder Woman, who are also trying to stop the villainous Dr. Bad Guy.
8. Dr. Bad Guy has a machine that can steal superpowers, and he uses it to take the powers from the superheroes.
9. The superheroes team up to try and stop Dr. Bad Guy and retrieve their stolen powers.
10. They use their brains and work together to outsmart Dr. Bad Guy and retrieve their powers.
11. The boy learns that being a superhero is not just about having powers, but also about using his brain and working with others.
12. The superheroes have a competition to see who is the strongest, fastest, and smartest, but it's revealed that they all cheated by using their superpowers.
13. The competition is restarted, and the superheroes are forced to deposit their superpowers in a jar to compete fairly.
14. The final round of the competition is a game of dodgeball, which is won by Captain Marvel.
15. However, it's revealed that the competition was a trick, and the host has stolen all of the superheroes' powers.
16. The superheroes work together to outsmart the host and retrieve their powers.
17. The boy learns that being a superhero is not just about having powers, but also about using his brain and working with others.
18. The boy's adventures continue as he becomes a part of a new superhero team.
19. The boy meets other superheroes, including Batman and Robin, who are also fighting against villains.
20. The boy learns about the importance of teamwork and using his brain to solve problems.
Note: Some of the facts may be repetitive or similar, but I've tried to extract the most important and unique information from the text.