Invincible TV Show

The first season introduces Mark Grayson as a seemingly normal teenager who finally develops superpowers at age seventeen, following in the footsteps of his father, Nolan Grayson, the world's greatest superhero, Omni-Man. Mark embraces his new identity as Invincible and begins training under his father while balancing his high school life and new relationship with his girlfriend, Amber. The season culminates in a massive, earth-shattering reveal: Nolan is not a benevolent protector, but an advance scout for the ruthless, intergalactic Viltrumite Empire, and his true mission is to conquer Earth. Omni-Man brutally murders the Guardians of the Globe to eliminate all potential resistance. The season ends with a horrific battle where Nolan tries to force Mark to join him, nearly killing him and devastating a major city before abandoning Earth, unable to bring himself to kill his son. Mark is left to pick up the pieces, reeling from his father's betrayal, his mother Debbie's trauma, and the responsibility of defending a world that now knows an invincible alien can turn against it.

A month after the devastating fight, Mark struggles with the public's fear and his own trauma, terrified of becoming like his father. He throws himself into hero work to prove he's different, all while the Global Defense Agency (GDA) attempts to manage the resulting chaos, including rebuilding the Guardians of the Globe. A new multiversal villain, Angstrom Levy, emerges, intent on combining the memories of his infinite alternate selves to save the world, but his plan is corrupted by a confrontation with Mark. Angstrom blames Invincible for his monstrous disfigurement, setting him up as a dangerous recurring foe. Amidst his superhero duties, Mark reunites with his father on the distant planet Thraxa, where Nolan has established a new family and has had a son. This reunion is cut short when three Viltrumite soldiers arrive to punish Nolan for abandoning his duty. After a bloody battle, Nolan is captured and imprisoned by his people, and Mark is issued a horrifying ultimatum by the Viltrumite General Kregg: complete Nolan's mission to conquer Earth, or they will return and destroy it themselves. Mark returns home with his new half-brother, Oliver, further complicating his life.

The third season dives deeper into the consequences of the Viltrumite threat and Mark's escalating responsibilities. Mark continues to grapple with the guilt of killing Angstrom Levy and the immense pressure of the Viltrumite ultimatum. As the alien threat looms, Allen the Alien, working for the Coalition of Planets, is tasked with finding a way to defeat the Viltrumites and tries to recruit Mark. Meanwhile, the GDA, led by Cecil Stedman, begins taking drastic measures to prepare Earth for the inevitable war, including using captured villains as weapons. Mark's half-brother, Oliver, ages rapidly and begins training as a hero, while Mark finally allows his relationship with Atom Eve to blossom. The season's climax brings the full force of the Viltrumite Empire to Earth with the arrival of Conquest, a brutally powerful Viltrumite veteran, sent to ensure Earth's conquest. Mark and Conquest engage in a horrific, city-leveling battle that pushes Invincible to his absolute limit. Though Mark manages to defeat and brutally kill Conquest, the victory comes at a massive personal cost, confirming that the war for Earth has truly begun and Mark must be prepared to be more brutal than he ever imagined.

Following the earth-shattering events of the Viltrumite War, Season 4 finds Mark Grayson leading the remains of Earth's heroes in a desperate bid to rebuild. With the Viltrumite Empire's presence still looming and new intergalactic threats emerging from the vacuum of power, Mark must decide what kind of leader—and father—he truly wants to be.