*Spoilers for Unbreakable ahead!*
Willis does not know he is a hero and Jackson is trying to prove it to him, the reason being that Jackson needs to feel like he has a place in the world. If Willis is the hero, then Jackson gets to be the villain thus having a purpose in life. Jackson states a few times in the movie that there is nothing worse in life than now knowing your place in the world. To try and find out who his opposite is, Jackson commits all sorts of terrorist acts looking for someone who would survive. He de-rails a train and Willis survives. Jackson confronts him about being a hero and Willis thinks he is crazy. Willis then realizes he has never been hurt or sick in his entire life. He was in a major car wreck in college that he faked being hurt in so he could get out of playing football. After entertaining the possibility of being a hero Willis discovers he has strength far above that of an average man and some sort of super intuition which allows him to know what a person has done wrong. While at a train station he bumps into someone who killed a set of parents and is keeping the daughters captive. He follows the man home and rescues the girls, becoming a real hero. The movie ends with a typical Shamalan twist and when Willis shakes Jackson's hand sees all the horrible acts he has committed. The end.
Overall I enjoyed the movie. It is not a tricky movie to understand, but i can see not getting it if you didn't watch the whole thing.
