Sinceย Man of Steel 2 (2024) was never officially made, hereโs a hypothetical summary based on rumored ideas, fan speculation, and what a true sequel to Man of Steel (2013) might have explored. After the events of Man of Steel and Justice League, Superman has fully embraced his role as Earth's protector, striving to rebuild trust with humanity while continuing to struggle with his dual identity as Clark Kent and the Last Son of Krypton. As he works alongside Lois Lane at the Daily Planet, a new threat emerges in the form of Lex Luthor, who has returned with a renewed vendetta against Superman. Having survived imprisonment and disgrace, Lex has been secretly funding advanced experiments to counter Supermanโs power. Meanwhile, Clark begins to uncover more about Kryptonโs lost history, leading him to a hidden outpost where he learns of Brainiac, a powerful artificial intelligence that has been monitoring Earth from deep space. Brainiac, an ancient collector of civilizations, sees Superman as the last remnant of Krypton and decides that Earth must be preservedโat the cost of human life. As Brainiac arrives, he disables Earth's technology and begins extracting cities into his collection, forcing Superman into his greatest battle yet.
As Metropolis falls into chaos, Superman finds himself outmatched by Brainiacโs superior intelligence and technology. Lex Luthor seizes the opportunity to exploit the situation, presenting himself as humanityโs savior by deploying a dangerous creation of his ownโMetallo, a cybernetic warrior powered by Kryptonite. Superman, weakened by Metalloโs attacks and overwhelmed by Brainiacโs forces, struggles to fight on two fronts. Meanwhile, Lois Lane and a team of scientists race against time to uncover a way to stop Brainiac from fully assimilating Earth. As Clarkโs battle intensifies, he is forced to confront his past and the legacy of Krypton. Through a hidden Kryptonian archive, he discovers that Brainiac was responsible for Kryptonโs destruction, having manipulated events to ensure the planetโs doom while collecting its knowledge. Fueled by this revelation, Superman pushes himself beyond his limits, managing to defeat Metallo and turning his focus to Brainiac.
In the final battle, Superman takes the fight to space, confronting Brainiac aboard his massive ship. Using the knowledge left behind by his father, Jor-El, he finds a way to override Brainiacโs core, forcing the AI into a vulnerable state. However, in a desperate last move, Brainiac attempts to destroy Earth rather than lose control. Superman, summoning every ounce of strength, stops the attack and ultimately dismantles Brainiacโs system, freeing the captured cities and saving the planet. As the dust settles, Lex Luthor, though defeated, remains in the shadows, already plotting his next move. Superman, now stronger and more resolute than ever, fully embraces his role as Earthโs guardian, knowing that greater challenges lie ahead. The filmโs ending teases the arrival of a new threatโperhaps Darkseid or the introduction of Supergirlโsetting the stage for an even larger cosmic battle. Though Man of Steel 2 was never made, its potential remains one of the most intriguing "what if" scenarios in the DC Universe.