[[Invincible (character)|Mark Grayson]] is a seemingly normal teenager whose father [[Omni-Man|Nolan]] is the most powerful superhero on the planet.<ref>{{Cite web |date=May 2, 2021 |title='Invincible' Season 1 Summary & Ending, Explained – Too Old and Too Much Cliched {{!}} DMT |url=https://dmtalkies.com/invincible-season-1-summary-ending-explained-2021-animated-series/ |url-status=live |archive-url=https://web.archive.org/web/20210502130920/https://dmtalkies.com/invincible-season-1-summary-ending-explained-2021-animated-series/ |archive-date=May 2, 2021 |access-date=May 2, 2021 |website=Digital Mafia Talkies |language=en-US}}</ref> Shortly after his seventeenth17th birthday, Mark begins to develop powers of his own and learns how to wield them with help from his father, who turns out to not be as heroic as he thought, as he hides a dark secret, which starts to slip when he brutally murders the members of the world's greatest superhero team, the Guardians of the Globe.<ref name="SeriesOrder">{{Cite web |last=Andreeva |first=Nellie |date=June 19, 2018 |title=Amazon Greenlights 'Invincible' Superhero Animated Series From Robert Kirkman |url=https://deadline.com/2018/06/amazon-invincible-superhero-animated-series-the-walking-dead-robert-kirkman-1202413387/ |url-status=live |archive-url=https://web.archive.org/web/20200530133112/https://deadline.com/2018/06/amazon-invincible-superhero-animated-series-the-walking-dead-robert-kirkman-1202413387/ |archive-date=May 30, 2020 |access-date=June 19, 2018 |website=Deadline Hollywood}}</ref>
