A plot refers to the main events of a text. (This is also referred to as the storyline, action, or story).
The plot of Nancy Farmer's The House of the Scorpion follows Matteo Alacran's rise to power over his own personal doubts, the doubts of others, and the power of El Patron. Matteo, also called Matt, is a clone of El Patron. El Patron needs Matt to continue his life (Matt's body serves as the replacement parts for El Patron--who is old and in poor health). Matt not only faces El Patron, he also faces the Keepers, Tom, his own family, and his own internal conflict along his rise to power. In the end, Matt succeeds at taking over El Patron's opium business, shuts down the illegal drug business, and takes over the country.