The Iron Man.
Tony skipped an award ceremony to gamble at a nightclub, forcing his friend Obadiah Stane to accept the award on his part, something Rhodey would confront him about later. The next day he embarked on a trip he was 3 hours late for to Afghanistan.
During the business trip to demonstrate the Stark Industries' new weapon, the "Jericho" cluster missile, Tony's convoy is attacked by terrorists. One of his own company's bombs lands near him and explodes. The blast causes him to lose consciousness and embeds several pieces of shrapnel in his chest, one fragment dangerously close to his heart. He wakes up some time later with an electromagnet attached to his chest. Hooked up to a car battery, the electromagnet keeps the shrapnel from entering his heart and killing him. Tony has been captured by the terrorist group Ten Rings, who order him to build a Jericho missile for them. Instead, he and fellow captive Dr. Yinsen secretly build a crude but strong power armor (Mark 1) fueled by a miniature "Arc reactor", a smaller version of a power source previously invented by Tony. The arc reactor supplies energy to an electromagnet which prevents embedded shrapnel from reaching Tony's heart, which would kill him. Dr.Yinsen is killed in the ensuing escape attempt when he stalls the guards to buy Tony enough time to power up the suit. Using the suit, Tony kills several terrorists, destroys their weapons stockpile, and escapes, though his suit is destroyed as he crash lands in the desert. Upon being picked up by the Air Force and returning to the United States, Tony declares that his company will, for the time being, no longer manufacture weapons. His father's friend and business partner tells him that this move is blocked by the board members shortly after.
Tony retreats from public view, focusing on the design of his power suit, refining its size and flight capability ( Mark 2). He asksPepper to help him take his old arc reactor out and to put in a new one. During his first public appearance since his return to the United States, he is accosted by Christine Everhart, who shows him pictures of Stark Industries weapons in the hands of terrorist groups, including the Jericho missiles he refused to build for them. He also discovers that Obadiah has been "dealing under the table", supplying weapons to both the U.S. troops and the terrorists, as well as being the one to shut Tony out of the board while he recovers. Faced with the realization of what his company has done, Tony dons the power suit (Mark 3) and flies to Afghanistan, rescuing Yinsen's village from the Ten Rings. In destroying their weapon stockpiles, he accidentally draws the attention of the United States Air Force and his friend and company military liaison, Lieutenant Colonel James Rhodes. Two F-22 Raptors are ordered to take out the unknown target, and during the confrontation one of the Raptors loses its left wing when it accidentally collides with Tony. The pilot ejects shortly afterwards, but his parachute jams. Realizing this, Tony dives down to help the pilot release his parachute before escaping.
Determined to make amends for his mistakes, Tony sends Pepper to find the shipping records of Stark Industries, so he can track down the illicit shipments and destroy them. While hacking into the system, she discovers that it was Obadiah who hired the Ten Rings to kill Tony, but they had reneged on the deal when they realized who the target was. She also discovers that Obadiah has recovered the power suit prototype and has reverse engineered his own version. However, his team of scientists, not possessing Tony's genius, cannot engineer the miniature arc reactor to power the new suit.
Obadiah, upon realizing Pepper's discovery, steals Tony's own arc reactor from his chest to power his new suit, leaving Tony to die. Using his first reactor, which was not designed to power his latest armor, Tony battles with Obadiah atop Stark Industries and the surrounding streets, defeating him when the full-sized arc reactor that powers the lab is deliberately overloaded by Pepper. Afterwards, Tony's alter ego is dubbed "Iron Man" by the press. Tony holds a press conference where his S.H.I.E.L.D. contacts advise him to state that Iron Man is Tony's bodyguard. However, he instead announces that he actually is Iron Man.
Later, Tony arrives home and is greeted by a mysterious visitor standing by the window. He reveals himself as Nick Fury, Director of S.H.I.E.L.D., warns him that he is not the only 'super hero' in the world, and mentions the Avengers Inititave.
In The AvengersEdit
Tony Stark activated an arc reactor prototype inStark Tower, his New York residence. He is confronted by Phil Coulson, briefing him on a new re-established Avengers Initiative and the Tesseract in the wake of Loki's attack on S.H.I.E.L.D.. He aids Captain America in defeating Loki in Stuttgard, Germany and initially condescends to the Captain. When Thor appears to take Loki away, Stark and Thor find themselves in a fight which is ended by Captain America. Stark attempts to dispel any hard feeling against Thor.
Stark takes an instant liking to Bruce Banner and attempts to justify the The Incredible Hulk's existence. He and Rogers become divided over Stark's attempt to hack and expose dark secrets S.H.I.E.L.D. is keeping. While the Avengers begin a heated argument, Stark and Rogers spit insults at each other and almost turn to blows before Loki's men attack the hellicarrier. Stark and Rogers attempt to reboot the power supply to a failing engine and Stark's suit is badly damaged during this. Tony is deeply hurt by the murder of Agent Coulson at the hands of Loki, after a talk with Steve, he individually works out Loki's next attack. Stark and Rogers agree that the Avengers should become independent from S.H.I.E.L.D. and assemble at Stark Tower.
Stark confronts Loki at Stark Tower where Loki is to open the portal to the Chitauri's fleet and swears to avenge the death of Coulson. After being thrown from the window, Stark assembles Iron Man Mark 7 and begins to attack the Chitauri invaders. While the battle intensifies, Stark intercepts a nuclear missile heading for New York and flies it directly into the portal, destroying the fleet but leaving him in deep space. Stark passes out before falling through the portal before it closes. Luckily, he is caught and revived by the Hulk. Waking up and realizing the Avengers have saved Earth, he suggests a celebratory meal at a shawarma restaurant, before helping the others arrest Loki. He is present when Thor teleports the Tesseract and Loki back to Asgaurd. Tony is last seen in Stark Tower with Pepper, designing new rooms for each member of the Avengers for whenever the team is needed to assemble again. An "A" is the remaining letter on the tower.
Tony uses high tech armor to become Iron Man. The armor allows him to fly and contains various weapons for battle. He frequently improves the armor, giving it upgrades for battles and to perfect the systems.