Invincible is about teenager Mark Grayson, whose father, Omni-Man, is the most powerful superhero on Earth. When Mark develops similar powers, he begins training to become a hero while balancing school, friendships, and his personal life. As he enters the superhero world, Mark learns that being a hero involves dangerous battles and difficult choices. The story shifts when he discovers the truth about his father’s mission, forcing him to question everything he thought he knew about heroism, family, and his own future.