After leaving school, a boy witnesses a chase and betrays the person being pursued. Back home, someone follows the boy.

Although on vacation, the Spaniards returned to the Americas convinced that there, in addition to the language, the spirit of El Dorado was still preserved. However, the old dangers still lurked.

Eudosio is expelled from home so that he decides to work, although his laziness will end up taking him to the legendary kingdom of Siam, Thailand.