The rise of Invincible as a superhero is quite the journey to follow. Mark Grayson is a normal teenager, except for the fact his father is Omni-Man, an extraterrestrial superhero. He discovers his powers in his late teens and follows the rigorous training regimen of his father to develop his superhuman strength, speed and flight abilities. As with most superheroes, his greatest strength upgrades occur when he's faced with extreme situations during his many battles. Not only his physical strength, but his moral strength grows as well by dealing with various challenges and dilemmas. Each hardship, each adversary faced prepares him better for the next. He’s not invincible because of his powers; he’s invincible because of his ability to constantly rise after defeat.