Iron Man
Although the location for Iron Man's origin has changed several times throughout the decades, the story itself has not. While demonstrating some of his creations abroad, Tony Stark was injured and taken captive by enemy soldiers. While in captivity, he was forced to build weapons for these terrorists, but with the help of scientist Ho Yinsen, he built a mechanical suit that allowed him to defeat his captors and escape to freedom. With a renewed perspective on life, Tony uses his new armor to protect the innocent as Iron Man. Not only is it one of best redemption origin stories and full of action as Tony escaped his imprisonment, it also showed that not everyone who becomes a superhero starts out as a moral individual. Sometimes takes a nudge (or in Tony's case nearly dying from shrapnel in your heart) to discover your true potential.