Half an hour later, a private plane arrived in the wilderness! Three people got off the plane, they were Iron Man, Thor and Hulk. Iron Man ran to the fighting scene first!,Finally, Mr. Stark rose to his feet with a loud bang, startling everyone. Tony seemed to have made a major decision and looked up at them, saying, "Everyone, follow me.",Suddenly, a bright light flashed above his head. He looked up and saw a sword hilt deeply embedded in the stone wall of the cave. The spot was right above the dragon's head!。