In Iron Man 4: Legacy Protocol, after Tony Stark’s death, Stark Industries’ technology is stolen by Dominion, led by Ezekiel Stane—the son of Obadiah Stane. He uses this technology to create Iron Monger X and a massive army of combat drones to take over the world. In a desperate situation, Pepper Potts and War Machine (Rhodey) discover an AI hidden within Stark Industries’ systems, carrying Tony Stark’s consciousness. With the help of AI Tony, they recruit Riri Williams (Ironheart)—a young tech genius—to fight against Dominion. Ezekiel launches an all-out attack on Stark Industries, forcing War Machine and Ironheart into battle against hundreds of combat drones. During the fight, AI Tony activates Legacy Protocol, deploying a remotely controlled Iron Man suit. However, Ezekiel unveils Iron Monger X Prime, a colossal suit with devastating power. To save the world, AI Tony sacrifices himself, transferring all his power into Ironheart’s suit, enabling her to defeat the enemy. Before disappearing, AI Tony leaves a final message: “It’s not about the suit, it’s about the person inside. Now it’s your turn.” With Tony Stark’s legacy living on, Ironheart officially becomes Iron Man’s successor, continuing to protect the world.