The Story of Tony Stark/Iron Man (Marvel Cinematic Universe)

Time Heist: Thanos' Offensive

After the Snap was undone, Iron Man, Captain America, and Thor discovered Thanos from the year 2014, who is fully aware of his plan's success and his fate, has arrived on Earth. Tony asked Thor what Thanos has been doing to which he was doing nothing. As Rogers asked Stark where the Infinity Stones are, he noted that they were underneath the rubble.

Thor tells the group that his arrival could be a trap but Iron Man admitted he couldn't care less. After Thor understood their agreement, Thor summoned his armor and wielded both Stormbreaker and Mjølnir while Captain America and Iron Man confronted Thanos who was sitting and waiting for them. As the three walk over to confront Thanos, Stark listened to his lecture about how they could not live with their failure and realized that there are those that remember what was, who are unable to accept what can be, much to Stark's disagreement.

Thanos, having seen the files from Nebula's memory and now believing that the universe would be ungrateful for him "correcting" it, had decided on a new plan to decimate the entire universe and start over with no-one remembering the massacre. Tony grew angry at the Mad Titan, knowing that his universe will be born out of blood before Thanos threatened to kill him and the team. The four engaged in a fight, having Iron Man to equip his hidden blade from his hand and started blasting his with his repulsors.

Iron Man then used his extra repulsors from his back and told Thor to blast his lightning from behind, in order to increase the amount of fire power. As Thor began to charge up his lighting powers, Stark was immediately blasted with huge amounts of energy that powered up his suit, aiming at Thanos for an attack. Thanos blocked Iron Man's beam with his Double-Edged Sword and as he grew closer, broke out of the laser.

Thanos used this opportunity to grab Iron Man with both his hands only to witness Thor using Stormbreaker to hit Mjølnir, which he then used Iron Man as human shield to knock him down and flew him across the field. After he rolled all over the ground, Iron Man was quickly hit by a near pile of rubble which had briefly put him in an unconscious state, becoming stalemated from the fight then on. The other Avengers had to fight Thanos without Iron Man, leading to one of them getting beaten relentlessly.

While Captain America tried to fight Thanos with all his might, Thanos eventually gained the upper hand and called out his entire army to the ground such as the Black Order, Chitauri, and the Outriders. Captain America stood up against Thanos' giant army alone until Doctor Strange arrived with the reinforcements to battle Thanos' army. Iron Man then woke up from his concussion and witnessed his allies coming back from the dead, including Pepper Potts in her Iron Suit.