Mark Grayson is an average teenager. He's hassled by his mom, he goes to school, he has a crappy fast food job. Then, suddenly, his life changes. He's finally developed his superpowers. He starts fighting crime after discovering his flight and strength, but, embarassed, his father (better known as Omni-Man) takes him to a superhero tailor. After a day of thinking, Mark Grayson becomes Invincible, the newest super-thorn in the side of villainy.