Invincible follows 17-year-old Mark Grayson as he discovers he has inherited extraordinary superhuman powers from his father, Omni-Man. Excited to join the ranks of Earth's mightiest heroes, Mark begins his journey as a young superhero while balancing the challenges of teenage life. However, a shocking and devastating event forces Mark to confront harsh truths about heroism, responsibility, and the cost of power. The series blends intense action with deep character drama, exploring themes of growing up and moral complexity in a superhero universe.