With Invincible Season 4 set to launch on Amazon Prime Video in March 2026, fans are looking to the original comics for clues about what comes next for Mark Grayson and his allies. The show has closely followed the major story beats of the 144-issue comic series, including major character deaths. As the story builds toward the massive Viltrumite War, several key characters are in serious danger based on events from the source material.
How the Comics Set the Stage for Season 4
The third season ended with major consequences that will directly lead into the next chapter. Mark Grayson and Atom Eve managed to defeat the powerful Viltrumite Conquest, though he survived and is imprisoned by the Global Defense Agency. This sets up a major rematch. Furthermore, the threat of the Sequid invasion is now imminent after the mind-controlled astronaut Rus Livingston was shown possessed in the Season 2 finale. The overarching narrative is moving toward a full-scale galactic conflict as Omni-Man, Allen the Alien, and their new ally Thaedus prepare to confront the Viltrum Empire. Showrunner Simon Racioppa has confirmed the show will continue to adapt the comics while also exploring new story ideas, like a previously unused “Hell” storyline.
The Potential Fate of Conquest
Although he was beaten into a coma, Conquest is still alive and in custody as Season 4 begins. In the comics, he eventually breaks free, returns to Viltrum to seek redemption from leader Thragg, and is sent back to Earth to finish his mission. This leads to a brutal rematch with Mark. The fight takes a dark turn when Conquest attacks Mark’s younger brother, Oliver Grayson.
“During their rematch, Conquest tried to kill Oliver right in front of Mark, sending Mark to a full fit of rage. Mark brutally decimated Conquest,” one summary of the comic event states.
This event is a major turning point for Mark, forcing him to make a lethal decision to protect his family. Given that the show has accurately adapted Conquest’s story so far, his return and eventual defeat at Mark’s hands is highly anticipated for the upcoming season.
The Tragic End for Rus Livingston
The human astronaut Rus Livingston has been a victim since the early seasons. Left behind on Mars and later taken over by the parasitic Sequids, his body has become the hive mind for an invading force. The Sequid invasion of Earth is expected to be a major plotline early in Season 4.
In the comics, Mark and the Guardians of the Globe fight the invasion but realize there is no way to save Rus or separate him from the hive. Faced with no alternative to stop the slaughter, Mark is forced to kill the possessed Rus. This act is described as one of Mark’s most traumatizing moments. The show has already laid the groundwork for this invasion, making Rus’s tragic fate a likely and emotional story for the new season.
Thaedus and the Viltrumite War
Season 3 introduced Thaedus, the first Viltrumite to rebel against the empire’s tyranny. He is a crucial figure in forming the Coalition of Planets and is a key ally in the coming war. The upcoming season will focus heavily on the Viltrumite War, the final climactic battle between the Coalition and the Viltrum Empire.
In the comics, after the heroes succeed in their campaign, the enraged Viltrumite leader Thragg kills Thaedus. His death is not just a loss but a catalyst for the next phase of the story, as it paves the way for Allen the Alien to rise as the new leader of the Coalition. Thaedus’s role in the war and his connection to Allen make his potential death a significant moment for the season’s plot.
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Other Major Events to Expect in Season 4
Beyond these potential deaths, the comics point to other major developments for Season 4. Atom Eve may discover she is pregnant with Mark’s child, a revelation that brings its own set of challenges and fears. Omni-Man is expected to return to Earth in an attempt to reconcile with Debbie Grayson, though their reunion may be complicated.
The show will also explore new threats and returns. The Flaxans are poised to return for another attempt at conquering Earth. Furthermore, showrunner Simon Racioppa has hinted at the return of fan-favorite characters like Battle Beast and Damien Darkblood, the latter being part of a new original storyline involving a journey to Hell.
The first three episodes of Invincible Season 4 are scheduled to premiere in March 2026, with new episodes releasing weekly. The season will adapt some of the most epic and consequential storylines from the comics, testing Mark Grayson like never before as he fights to protect his home and family from galactic threats.
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