The book revolves on the struggles of young Crisostomo Ibarra: how he humbly fights for his childhood sweetheart Maria Clara, for himself and for his fellowmen against the Spanish priest Padre Damaso and the Spanish Government who were then conquerors of San Diego, his native hometown. Coming home to San Diego from Spain to mourn for his father's death, he learned how his father, a rich illustrado, suffered prior to his death. However, he was surprised by the facts how his father had been treated during a trial and after he died. After learning about this, he decided to continue his father's plan of building a school while reuniting with Maria Clara, his childhood sweetheart from a wealthy family while the former parish priest Padre Damaso keeps on rejecting both. Thus, the story of how the Filipinos got afflicted with the "Cancer of the Society" during the Spanish era is told by none other than the National Hero of the Philippines. Many characters who symbolize every type of Filipino during those times have revolved around these characters. Get a glimpse of how the Filipinos fight for their own right, in their own ways during the 17th century.